18651958

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2221}}^1$

素因数の和:2272

約数の個数: 32

約数和(自身を含む): 33596640

約数和(自身を除く): 14944682

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 221, 247, 323, 442, 494, 646, 2221, 4199, 4442, 8398, 28873, 37757, 42199, 57746, 75514, 84398, 490841, 548587, 717383, 981682, 1097174, 1434766, 9325979, 18651958]

約数ペア:

[(1, 18651958), (2, 9325979), (13, 1434766), (17, 1097174), (19, 981682), (26, 717383), (34, 548587), (38, 490841), (221, 84398), (247, 75514), (323, 57746), (442, 42199), (494, 37757), (646, 28873), (2221, 8398), (4199, 4442)]