20916290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2017}}^1$

素因数の和:2102

約数の個数: 32

約数和(自身を含む): 40537584

約数和(自身を除く): 19621294

約数列:

[1, 2, 5, 10, 17, 34, 61, 85, 122, 170, 305, 610, 1037, 2017, 2074, 4034, 5185, 10085, 10370, 20170, 34289, 68578, 123037, 171445, 246074, 342890, 615185, 1230370, 2091629, 4183258, 10458145, 20916290]

約数ペア:

[(1, 20916290), (2, 10458145), (5, 4183258), (10, 2091629), (17, 1230370), (34, 615185), (61, 342890), (85, 246074), (122, 171445), (170, 123037), (305, 68578), (610, 34289), (1037, 20170), (2017, 10370), (2074, 10085), (4034, 5185)]