20101215

素因数分解:

$3^1\times 5^1\times {\mathrm{911}}^1\times {\mathrm{1471}}^1$

素因数の和:2390

約数の個数: 16

約数和(自身を含む): 32219136

約数和(自身を除く): 12117921

約数列:

[1, 3, 5, 15, 911, 1471, 2733, 4413, 4555, 7355, 13665, 22065, 1340081, 4020243, 6700405, 20101215]

約数ペア:

[(1, 20101215), (3, 6700405), (5, 4020243), (15, 1340081), (911, 22065), (1471, 13665), (2733, 7355), (4413, 4555)]