21502076

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{1747}}^1$

素因数の和:1949

約数の個数: 24

約数和(自身を含む): 40085136

約数和(自身を除く): 18583060

約数列:

[1, 2, 4, 17, 34, 68, 181, 362, 724, 1747, 3077, 3494, 6154, 6988, 12308, 29699, 59398, 118796, 316207, 632414, 1264828, 5375519, 10751038, 21502076]

約数ペア:

[(1, 21502076), (2, 10751038), (4, 5375519), (17, 1264828), (34, 632414), (68, 316207), (181, 118796), (362, 59398), (724, 29699), (1747, 12308), (3077, 6988), (3494, 6154)]