21904174655

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{10357}}^1\times {\mathrm{38453}}^1$

素因数の和:48826

約数の個数: 16

約数和(自身を含む): 28678070304

約数和(自身を除く): 6773895649

約数列:

[1, 5, 11, 55, 10357, 38453, 51785, 113927, 192265, 422983, 569635, 2114915, 398257721, 1991288605, 4380834931, 21904174655]

約数ペア:

[(1, 21904174655), (5, 4380834931), (11, 1991288605), (55, 398257721), (10357, 2114915), (38453, 569635), (51785, 422983), (113927, 192265)]