19973169

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 30692480

約数和(自身を除く): 10719311

約数列:

[1, 3, 9, 27, 61, 67, 181, 183, 201, 543, 549, 603, 1629, 1647, 1809, 4087, 4887, 11041, 12127, 12261, 33123, 36381, 36783, 99369, 109143, 110349, 298107, 327429, 739747, 2219241, 6657723, 19973169]

約数ペア:

[(1, 19973169), (3, 6657723), (9, 2219241), (27, 739747), (61, 327429), (67, 298107), (181, 110349), (183, 109143), (201, 99369), (543, 36783), (549, 36381), (603, 33123), (1629, 12261), (1647, 12127), (1809, 11041), (4087, 4887)]