28707826

素因数分解:

$2^1\times 7^2\times {\mathrm{457}}^1\times {\mathrm{641}}^1$

素因数の和:1114

約数の個数: 24

約数和(自身を含む): 50280156

約数和(自身を除く): 21572330

約数列:

[1, 2, 7, 14, 49, 98, 457, 641, 914, 1282, 3199, 4487, 6398, 8974, 22393, 31409, 44786, 62818, 292937, 585874, 2050559, 4101118, 14353913, 28707826]

約数ペア:

[(1, 28707826), (2, 14353913), (7, 4101118), (14, 2050559), (49, 585874), (98, 292937), (457, 62818), (641, 44786), (914, 31409), (1282, 22393), (3199, 8974), (4487, 6398)]