21256130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 46621440

約数和(自身を除く): 25365310

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 37, 58, 70, 74, 145, 185, 203, 259, 283, 290, 370, 406, 518, 566, 1015, 1073, 1295, 1415, 1981, 2030, 2146, 2590, 2830, 3962, 5365, 7511, 8207, 9905, 10471, 10730, 15022, 16414, 19810, 20942, 37555, 41035, 52355, 57449, 73297, 75110, 82070, 104710, 114898, 146594, 287245, 303659, 366485, 574490, 607318, 732970, 1518295, 2125613, 3036590, 4251226, 10628065, 21256130]

約数ペア:

[(1, 21256130), (2, 10628065), (5, 4251226), (7, 3036590), (10, 2125613), (14, 1518295), (29, 732970), (35, 607318), (37, 574490), (58, 366485), (70, 303659), (74, 287245), (145, 146594), (185, 114898), (203, 104710), (259, 82070), (283, 75110), (290, 73297), (370, 57449), (406, 52355), (518, 41035), (566, 37555), (1015, 20942), (1073, 19810), (1295, 16414), (1415, 15022), (1981, 10730), (2030, 10471), (2146, 9905), (2590, 8207), (2830, 7511), (3962, 5365)]