20919912004

素因数分解:

$2^2\times {\mathrm{29}}^2\times {\mathrm{571}}^1\times {\mathrm{10891}}^1$

素因数の和:11524

約数の個数: 36

約数和(自身を含む): 37985675728

約数和(自身を除く): 17065763724

約数列:

[1, 2, 4, 29, 58, 116, 571, 841, 1142, 1682, 2284, 3364, 10891, 16559, 21782, 33118, 43564, 66236, 315839, 480211, 631678, 960422, 1263356, 1920844, 6218761, 9159331, 12437522, 18318662, 24875044, 36637324, 180344069, 360688138, 721376276, 5229978001, 10459956002, 20919912004]

約数ペア:

[(1, 20919912004), (2, 10459956002), (4, 5229978001), (29, 721376276), (58, 360688138), (116, 180344069), (571, 36637324), (841, 24875044), (1142, 18318662), (1682, 12437522), (2284, 9159331), (3364, 6218761), (10891, 1920844), (16559, 1263356), (21782, 960422), (33118, 631678), (43564, 480211), (66236, 315839)]