21490350

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:330

約数の個数: 96

約数和(自身を含む): 61829376

約数和(自身を除く): 40339026

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 97, 105, 150, 175, 194, 210, 211, 291, 350, 422, 485, 525, 582, 633, 679, 970, 1050, 1055, 1266, 1358, 1455, 1477, 2037, 2110, 2425, 2910, 2954, 3165, 3395, 4074, 4431, 4850, 5275, 6330, 6790, 7275, 7385, 8862, 10185, 10550, 14550, 14770, 15825, 16975, 20370, 20467, 22155, 31650, 33950, 36925, 40934, 44310, 50925, 61401, 73850, 101850, 102335, 110775, 122802, 143269, 204670, 221550, 286538, 307005, 429807, 511675, 614010, 716345, 859614, 1023350, 1432690, 1535025, 2149035, 3070050, 3581725, 4298070, 7163450, 10745175, 21490350]

約数ペア:

[(1, 21490350), (2, 10745175), (3, 7163450), (5, 4298070), (6, 3581725), (7, 3070050), (10, 2149035), (14, 1535025), (15, 1432690), (21, 1023350), (25, 859614), (30, 716345), (35, 614010), (42, 511675), (50, 429807), (70, 307005), (75, 286538), (97, 221550), (105, 204670), (150, 143269), (175, 122802), (194, 110775), (210, 102335), (211, 101850), (291, 73850), (350, 61401), (422, 50925), (485, 44310), (525, 40934), (582, 36925), (633, 33950), (679, 31650), (970, 22155), (1050, 20467), (1055, 20370), (1266, 16975), (1358, 15825), (1455, 14770), (1477, 14550), (2037, 10550), (2110, 10185), (2425, 8862), (2910, 7385), (2954, 7275), (3165, 6790), (3395, 6330), (4074, 5275), (4431, 4850)]