717961887

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{145307}}^1$

素因数の和:145380

約数の個数: 20

約数和(自身を含む): 1090100616

約数和(自身を除く): 372138729

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 145307, 435921, 1307763, 3923289, 8863727, 11769867, 26591181, 79773543, 239320629, 717961887]

約数ペア:

[(1, 717961887), (3, 239320629), (9, 79773543), (27, 26591181), (61, 11769867), (81, 8863727), (183, 3923289), (549, 1307763), (1647, 435921), (4941, 145307)]