21350700

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{3389}}^1$

素因数の和:3416

約数の個数: 108

約数和(自身を含む): 76505520

約数和(自身を除く): 55154820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 126, 140, 150, 175, 180, 210, 225, 252, 300, 315, 350, 420, 450, 525, 630, 700, 900, 1050, 1260, 1575, 2100, 3150, 3389, 6300, 6778, 10167, 13556, 16945, 20334, 23723, 30501, 33890, 40668, 47446, 50835, 61002, 67780, 71169, 84725, 94892, 101670, 118615, 122004, 142338, 152505, 169450, 203340, 213507, 237230, 254175, 284676, 305010, 338900, 355845, 427014, 474460, 508350, 593075, 610020, 711690, 762525, 854028, 1016700, 1067535, 1186150, 1423380, 1525050, 1779225, 2135070, 2372300, 3050100, 3558450, 4270140, 5337675, 7116900, 10675350, 21350700]

約数ペア:

[(1, 21350700), (2, 10675350), (3, 7116900), (4, 5337675), (5, 4270140), (6, 3558450), (7, 3050100), (9, 2372300), (10, 2135070), (12, 1779225), (14, 1525050), (15, 1423380), (18, 1186150), (20, 1067535), (21, 1016700), (25, 854028), (28, 762525), (30, 711690), (35, 610020), (36, 593075), (42, 508350), (45, 474460), (50, 427014), (60, 355845), (63, 338900), (70, 305010), (75, 284676), (84, 254175), (90, 237230), (100, 213507), (105, 203340), (126, 169450), (140, 152505), (150, 142338), (175, 122004), (180, 118615), (210, 101670), (225, 94892), (252, 84725), (300, 71169), (315, 67780), (350, 61002), (420, 50835), (450, 47446), (525, 40668), (630, 33890), (700, 30501), (900, 23723), (1050, 20334), (1260, 16945), (1575, 13556), (2100, 10167), (3150, 6778), (3389, 6300)]