31431978

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^2\times {\mathrm{389}}^1$

素因数の和:531

約数の個数: 36

約数和(自身を含む): 69311970

約数和(自身を除く): 37879992

約数列:

[1, 2, 3, 6, 9, 18, 67, 134, 201, 389, 402, 603, 778, 1167, 1206, 2334, 3501, 4489, 7002, 8978, 13467, 26063, 26934, 40401, 52126, 78189, 80802, 156378, 234567, 469134, 1746221, 3492442, 5238663, 10477326, 15715989, 31431978]

約数ペア:

[(1, 31431978), (2, 15715989), (3, 10477326), (6, 5238663), (9, 3492442), (18, 1746221), (67, 469134), (134, 234567), (201, 156378), (389, 80802), (402, 78189), (603, 52126), (778, 40401), (1167, 26934), (1206, 26063), (2334, 13467), (3501, 8978), (4489, 7002)]