21380476

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{2297}}^1$

素因数の和:2493

約数の個数: 24

約数和(自身を含む): 40536720

約数和(自身を除く): 19156244

約数列:

[1, 2, 4, 13, 26, 52, 179, 358, 716, 2297, 2327, 4594, 4654, 9188, 9308, 29861, 59722, 119444, 411163, 822326, 1644652, 5345119, 10690238, 21380476]

約数ペア:

[(1, 21380476), (2, 10690238), (4, 5345119), (13, 1644652), (26, 822326), (52, 411163), (179, 119444), (358, 59722), (716, 29861), (2297, 9308), (2327, 9188), (4594, 4654)]