20409878

素因数分解:

$2^1\times {\mathrm{23}}^2\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:340

約数の個数: 24

約数和(自身を含む): 32489856

約数和(自身を除く): 12079978

約数列:

[1, 2, 23, 46, 101, 191, 202, 382, 529, 1058, 2323, 4393, 4646, 8786, 19291, 38582, 53429, 101039, 106858, 202078, 443693, 887386, 10204939, 20409878]

約数ペア:

[(1, 20409878), (2, 10204939), (23, 887386), (46, 443693), (101, 202078), (191, 106858), (202, 101039), (382, 53429), (529, 38582), (1058, 19291), (2323, 8786), (4393, 4646)]