21224241

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 32672640

約数和(自身を除く): 11448399

約数列:

[1, 3, 9, 27, 43, 101, 129, 181, 303, 387, 543, 909, 1161, 1629, 2727, 4343, 4887, 7783, 13029, 18281, 23349, 39087, 54843, 70047, 117261, 164529, 210141, 493587, 786083, 2358249, 7074747, 21224241]

約数ペア:

[(1, 21224241), (3, 7074747), (9, 2358249), (27, 786083), (43, 493587), (101, 210141), (129, 164529), (181, 117261), (303, 70047), (387, 54843), (543, 39087), (909, 23349), (1161, 18281), (1629, 13029), (2727, 7783), (4343, 4887)]