19928324

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{2441}}^1$

素因数の和:2615

約数の個数: 24

約数和(自身を含む): 37811928

約数和(自身を除く): 17883604

約数列:

[1, 2, 4, 13, 26, 52, 157, 314, 628, 2041, 2441, 4082, 4882, 8164, 9764, 31733, 63466, 126932, 383237, 766474, 1532948, 4982081, 9964162, 19928324]

約数ペア:

[(1, 19928324), (2, 9964162), (4, 4982081), (13, 1532948), (26, 766474), (52, 383237), (157, 126932), (314, 63466), (628, 31733), (2041, 9764), (2441, 8164), (4082, 4882)]