21152104

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 40550400

約数和(自身を除く): 19398296

約数列:

[1, 2, 4, 8, 109, 127, 191, 218, 254, 382, 436, 508, 764, 872, 1016, 1528, 13843, 20819, 24257, 27686, 41638, 48514, 55372, 83276, 97028, 110744, 166552, 194056, 2644013, 5288026, 10576052, 21152104]

約数ペア:

[(1, 21152104), (2, 10576052), (4, 5288026), (8, 2644013), (109, 194056), (127, 166552), (191, 110744), (218, 97028), (254, 83276), (382, 55372), (436, 48514), (508, 41638), (764, 27686), (872, 24257), (1016, 20819), (1528, 13843)]