21303724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{1523}}^1$

素因数の和:1809

約数の個数: 24

約数和(自身を含む): 40325040

約数和(自身を除く): 19021316

約数列:

[1, 2, 4, 13, 26, 52, 269, 538, 1076, 1523, 3046, 3497, 6092, 6994, 13988, 19799, 39598, 79196, 409687, 819374, 1638748, 5325931, 10651862, 21303724]

約数ペア:

[(1, 21303724), (2, 10651862), (4, 5325931), (13, 1638748), (26, 819374), (52, 409687), (269, 79196), (538, 39598), (1076, 19799), (1523, 13988), (3046, 6994), (3497, 6092)]