31661115

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{257}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 52310016

約数和(自身を除く): 20648901

約数列:

[1, 3, 5, 15, 43, 129, 191, 215, 257, 573, 645, 771, 955, 1285, 2865, 3855, 8213, 11051, 24639, 33153, 41065, 49087, 55255, 123195, 147261, 165765, 245435, 736305, 2110741, 6332223, 10553705, 31661115]

約数ペア:

[(1, 31661115), (3, 10553705), (5, 6332223), (15, 2110741), (43, 736305), (129, 245435), (191, 165765), (215, 147261), (257, 123195), (573, 55255), (645, 49087), (771, 41065), (955, 33153), (1285, 24639), (2865, 11051), (3855, 8213)]