31231079

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 38361600

約数和(自身を除く): 7130521

約数列:

[1, 11, 19, 23, 73, 89, 209, 253, 437, 803, 979, 1387, 1679, 1691, 2047, 4807, 6497, 15257, 18469, 18601, 22517, 31901, 38893, 71467, 123443, 149431, 350911, 427823, 1357873, 1643741, 2839189, 31231079]

約数ペア:

[(1, 31231079), (11, 2839189), (19, 1643741), (23, 1357873), (73, 427823), (89, 350911), (209, 149431), (253, 123443), (437, 71467), (803, 38893), (979, 31901), (1387, 22517), (1679, 18601), (1691, 18469), (2047, 15257), (4807, 6497)]