21852870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:569

約数の個数: 64

約数和(自身を含む): 57032640

約数和(自身を除く): 35179770

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 137, 195, 274, 390, 409, 411, 685, 818, 822, 1227, 1370, 1781, 2045, 2055, 2454, 3562, 4090, 4110, 5317, 5343, 6135, 8905, 10634, 10686, 12270, 15951, 17810, 26585, 26715, 31902, 53170, 53430, 56033, 79755, 112066, 159510, 168099, 280165, 336198, 560330, 728429, 840495, 1456858, 1680990, 2185287, 3642145, 4370574, 7284290, 10926435, 21852870]

約数ペア:

[(1, 21852870), (2, 10926435), (3, 7284290), (5, 4370574), (6, 3642145), (10, 2185287), (13, 1680990), (15, 1456858), (26, 840495), (30, 728429), (39, 560330), (65, 336198), (78, 280165), (130, 168099), (137, 159510), (195, 112066), (274, 79755), (390, 56033), (409, 53430), (411, 53170), (685, 31902), (818, 26715), (822, 26585), (1227, 17810), (1370, 15951), (1781, 12270), (2045, 10686), (2055, 10634), (2454, 8905), (3562, 6135), (4090, 5343), (4110, 5317)]