21264484

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{1747}}^1$

素因数の和:1947

約数の個数: 24

約数和(自身を含む): 39644640

約数和(自身を除く): 18380156

約数列:

[1, 2, 4, 17, 34, 68, 179, 358, 716, 1747, 3043, 3494, 6086, 6988, 12172, 29699, 59398, 118796, 312713, 625426, 1250852, 5316121, 10632242, 21264484]

約数ペア:

[(1, 21264484), (2, 10632242), (4, 5316121), (17, 1250852), (34, 625426), (68, 312713), (179, 118796), (358, 59398), (716, 29699), (1747, 12172), (3043, 6988), (3494, 6086)]