21497463

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4273}}^1$

素因数の和:4335

約数の個数: 24

約数和(自身を含む): 34226192

約数和(自身を除く): 12728729

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 4273, 5031, 12819, 38457, 55549, 166647, 183739, 499941, 551217, 1653651, 2388607, 7165821, 21497463]

約数ペア:

[(1, 21497463), (3, 7165821), (9, 2388607), (13, 1653651), (39, 551217), (43, 499941), (117, 183739), (129, 166647), (387, 55549), (559, 38457), (1677, 12819), (4273, 5031)]