21464870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16139}}^1$

素因数の和:16172

約数の個数: 32

約数和(自身を含む): 46483200

約数和(自身を除く): 25018330

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 16139, 32278, 80695, 112973, 161390, 225946, 306641, 564865, 613282, 1129730, 1533205, 2146487, 3066410, 4292974, 10732435, 21464870]

約数ペア:

[(1, 21464870), (2, 10732435), (5, 4292974), (7, 3066410), (10, 2146487), (14, 1533205), (19, 1129730), (35, 613282), (38, 564865), (70, 306641), (95, 225946), (133, 161390), (190, 112973), (266, 80695), (665, 32278), (1330, 16139)]