621760321

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{3929}}^1$

素因数の和:4033

約数の個数: 32

約数和(自身を含む): 802851840

約数和(自身を除く): 181091519

約数列:

[1, 7, 13, 37, 47, 91, 259, 329, 481, 611, 1739, 3367, 3929, 4277, 12173, 22607, 27503, 51077, 145373, 158249, 184663, 357539, 1017611, 1292641, 1889849, 2400619, 6832531, 13228943, 16804333, 47827717, 88822903, 621760321]

約数ペア:

[(1, 621760321), (7, 88822903), (13, 47827717), (37, 16804333), (47, 13228943), (91, 6832531), (259, 2400619), (329, 1889849), (481, 1292641), (611, 1017611), (1739, 357539), (3367, 184663), (3929, 158249), (4277, 145373), (12173, 51077), (22607, 27503)]