21758230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:445

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 24690410

約数列:

[1, 2, 5, 10, 13, 19, 23, 26, 38, 46, 65, 95, 115, 130, 190, 230, 247, 299, 383, 437, 494, 598, 766, 874, 1235, 1495, 1915, 2185, 2470, 2990, 3830, 4370, 4979, 5681, 7277, 8809, 9958, 11362, 14554, 17618, 24895, 28405, 36385, 44045, 49790, 56810, 72770, 88090, 94601, 114517, 167371, 189202, 229034, 334742, 473005, 572585, 836855, 946010, 1145170, 1673710, 2175823, 4351646, 10879115, 21758230]

約数ペア:

[(1, 21758230), (2, 10879115), (5, 4351646), (10, 2175823), (13, 1673710), (19, 1145170), (23, 946010), (26, 836855), (38, 572585), (46, 473005), (65, 334742), (95, 229034), (115, 189202), (130, 167371), (190, 114517), (230, 94601), (247, 88090), (299, 72770), (383, 56810), (437, 49790), (494, 44045), (598, 36385), (766, 28405), (874, 24895), (1235, 17618), (1495, 14554), (1915, 11362), (2185, 9958), (2470, 8809), (2990, 7277), (3830, 5681), (4370, 4979)]