21141900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{139}}^1$

素因数の和:185

約数の個数: 162

約数和(自身を含む): 72274020

約数和(自身を除く): 51132120

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 30, 36, 39, 45, 50, 52, 60, 65, 75, 78, 90, 100, 117, 130, 139, 150, 156, 169, 180, 195, 225, 234, 260, 278, 300, 325, 338, 390, 417, 450, 468, 507, 556, 585, 650, 676, 695, 780, 834, 845, 900, 975, 1014, 1170, 1251, 1300, 1390, 1521, 1668, 1690, 1807, 1950, 2028, 2085, 2340, 2502, 2535, 2780, 2925, 3042, 3380, 3475, 3614, 3900, 4170, 4225, 5004, 5070, 5421, 5850, 6084, 6255, 6950, 7228, 7605, 8340, 8450, 9035, 10140, 10425, 10842, 11700, 12510, 12675, 13900, 15210, 16263, 16900, 18070, 20850, 21684, 23491, 25020, 25350, 27105, 30420, 31275, 32526, 36140, 38025, 41700, 45175, 46982, 50700, 54210, 62550, 65052, 70473, 76050, 81315, 90350, 93964, 108420, 117455, 125100, 135525, 140946, 152100, 162630, 180700, 211419, 234910, 271050, 281892, 325260, 352365, 406575, 422838, 469820, 542100, 587275, 704730, 813150, 845676, 1057095, 1174550, 1409460, 1626300, 1761825, 2114190, 2349100, 3523650, 4228380, 5285475, 7047300, 10570950, 21141900]

約数ペア:

[(1, 21141900), (2, 10570950), (3, 7047300), (4, 5285475), (5, 4228380), (6, 3523650), (9, 2349100), (10, 2114190), (12, 1761825), (13, 1626300), (15, 1409460), (18, 1174550), (20, 1057095), (25, 845676), (26, 813150), (30, 704730), (36, 587275), (39, 542100), (45, 469820), (50, 422838), (52, 406575), (60, 352365), (65, 325260), (75, 281892), (78, 271050), (90, 234910), (100, 211419), (117, 180700), (130, 162630), (139, 152100), (150, 140946), (156, 135525), (169, 125100), (180, 117455), (195, 108420), (225, 93964), (234, 90350), (260, 81315), (278, 76050), (300, 70473), (325, 65052), (338, 62550), (390, 54210), (417, 50700), (450, 46982), (468, 45175), (507, 41700), (556, 38025), (585, 36140), (650, 32526), (676, 31275), (695, 30420), (780, 27105), (834, 25350), (845, 25020), (900, 23491), (975, 21684), (1014, 20850), (1170, 18070), (1251, 16900), (1300, 16263), (1390, 15210), (1521, 13900), (1668, 12675), (1690, 12510), (1807, 11700), (1950, 10842), (2028, 10425), (2085, 10140), (2340, 9035), (2502, 8450), (2535, 8340), (2780, 7605), (2925, 7228), (3042, 6950), (3380, 6255), (3475, 6084), (3614, 5850), (3900, 5421), (4170, 5070), (4225, 5004)]