31388931

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8741}}^1$

素因数の和:8776

約数の個数: 32

約数和(自身を含む): 55948800

約数和(自身を除く): 24559869

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 8741, 26223, 61187, 78669, 166079, 183561, 236007, 498237, 550683, 1162553, 1494711, 1652049, 3487659, 4484133, 10462977, 31388931]

約数ペア:

[(1, 31388931), (3, 10462977), (7, 4484133), (9, 3487659), (19, 1652049), (21, 1494711), (27, 1162553), (57, 550683), (63, 498237), (133, 236007), (171, 183561), (189, 166079), (399, 78669), (513, 61187), (1197, 26223), (3591, 8741)]