21437756

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{379}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 38304000

約数和(自身を除く): 16866244

約数列:

[1, 2, 4, 79, 158, 179, 316, 358, 379, 716, 758, 1516, 14141, 28282, 29941, 56564, 59882, 67841, 119764, 135682, 271364, 5359439, 10718878, 21437756]

約数ペア:

[(1, 21437756), (2, 10718878), (4, 5359439), (79, 271364), (158, 135682), (179, 119764), (316, 67841), (358, 59882), (379, 56564), (716, 29941), (758, 28282), (1516, 14141)]