21798900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{457}}^1$

素因数の和:530

約数の個数: 108

約数和(自身を含む): 69768972

約数和(自身を除く): 47970072

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 53, 60, 75, 90, 100, 106, 150, 159, 180, 212, 225, 265, 300, 318, 450, 457, 477, 530, 636, 795, 900, 914, 954, 1060, 1325, 1371, 1590, 1828, 1908, 2285, 2385, 2650, 2742, 3180, 3975, 4113, 4570, 4770, 5300, 5484, 6855, 7950, 8226, 9140, 9540, 11425, 11925, 13710, 15900, 16452, 20565, 22850, 23850, 24221, 27420, 34275, 41130, 45700, 47700, 48442, 68550, 72663, 82260, 96884, 102825, 121105, 137100, 145326, 205650, 217989, 242210, 290652, 363315, 411300, 435978, 484420, 605525, 726630, 871956, 1089945, 1211050, 1453260, 1816575, 2179890, 2422100, 3633150, 4359780, 5449725, 7266300, 10899450, 21798900]

約数ペア:

[(1, 21798900), (2, 10899450), (3, 7266300), (4, 5449725), (5, 4359780), (6, 3633150), (9, 2422100), (10, 2179890), (12, 1816575), (15, 1453260), (18, 1211050), (20, 1089945), (25, 871956), (30, 726630), (36, 605525), (45, 484420), (50, 435978), (53, 411300), (60, 363315), (75, 290652), (90, 242210), (100, 217989), (106, 205650), (150, 145326), (159, 137100), (180, 121105), (212, 102825), (225, 96884), (265, 82260), (300, 72663), (318, 68550), (450, 48442), (457, 47700), (477, 45700), (530, 41130), (636, 34275), (795, 27420), (900, 24221), (914, 23850), (954, 22850), (1060, 20565), (1325, 16452), (1371, 15900), (1590, 13710), (1828, 11925), (1908, 11425), (2285, 9540), (2385, 9140), (2650, 8226), (2742, 7950), (3180, 6855), (3975, 5484), (4113, 5300), (4570, 4770)]