65021971

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{331}}^1$

素因数の和:575

約数の個数: 24

約数和(自身を含む): 80237760

約数和(自身を除く): 15215789

約数列:

[1, 7, 19, 49, 133, 211, 331, 931, 1477, 2317, 4009, 6289, 10339, 16219, 28063, 44023, 69841, 196441, 308161, 488887, 1326979, 3422209, 9288853, 65021971]

約数ペア:

[(1, 65021971), (7, 9288853), (19, 3422209), (49, 1326979), (133, 488887), (211, 308161), (331, 196441), (931, 69841), (1477, 44023), (2317, 28063), (4009, 16219), (6289, 10339)]