21110330

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{811}}^1$

素因数の和:974

約数の個数: 32

約数和(自身を含む): 40340160

約数和(自身を除く): 19229830

約数列:

[1, 2, 5, 10, 19, 38, 95, 137, 190, 274, 685, 811, 1370, 1622, 2603, 4055, 5206, 8110, 13015, 15409, 26030, 30818, 77045, 111107, 154090, 222214, 555535, 1111070, 2111033, 4222066, 10555165, 21110330]

約数ペア:

[(1, 21110330), (2, 10555165), (5, 4222066), (10, 2111033), (19, 1111070), (38, 555535), (95, 222214), (137, 154090), (190, 111107), (274, 77045), (685, 30818), (811, 26030), (1370, 15409), (1622, 13015), (2603, 8110), (4055, 5206)]