2147156921

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{4327}}^1$

素因数の和:4414

約数の個数: 48

約数和(自身を含む): 2901144960

約数和(自身を除く): 753988039

約数列:

[1, 7, 13, 19, 41, 49, 91, 133, 247, 287, 533, 637, 779, 931, 1729, 2009, 3731, 4327, 5453, 10127, 12103, 26117, 30289, 38171, 56251, 70889, 82213, 177407, 212023, 393757, 496223, 575491, 1068769, 1241849, 2306291, 2756299, 3370733, 4028437, 7481383, 8692943, 16144037, 23595131, 43819529, 52369681, 113008259, 165165917, 306736703, 2147156921]

約数ペア:

[(1, 2147156921), (7, 306736703), (13, 165165917), (19, 113008259), (41, 52369681), (49, 43819529), (91, 23595131), (133, 16144037), (247, 8692943), (287, 7481383), (533, 4028437), (637, 3370733), (779, 2756299), (931, 2306291), (1729, 1241849), (2009, 1068769), (3731, 575491), (4327, 496223), (5453, 393757), (10127, 212023), (12103, 177407), (26117, 82213), (30289, 70889), (38171, 56251)]