20857564234

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{337}}^1\times {\mathrm{32609}}^1$

素因数の和:33034

約数の個数: 32

約数和(自身を含む): 34256935440

約数和(自身を除く): 13399371206

約数列:

[1, 2, 13, 26, 73, 146, 337, 674, 949, 1898, 4381, 8762, 24601, 32609, 49202, 65218, 319813, 423917, 639626, 847834, 2380457, 4760914, 10989233, 21978466, 30945941, 61891882, 142860029, 285720058, 802214009, 1604428018, 10428782117, 20857564234]

約数ペア:

[(1, 20857564234), (2, 10428782117), (13, 1604428018), (26, 802214009), (73, 285720058), (146, 142860029), (337, 61891882), (674, 30945941), (949, 21978466), (1898, 10989233), (4381, 4760914), (8762, 2380457), (24601, 847834), (32609, 639626), (49202, 423917), (65218, 319813)]