21731517

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 33586560

約数和(自身を除く): 11855043

約数列:

[1, 3, 9, 27, 41, 67, 123, 201, 293, 369, 603, 879, 1107, 1809, 2637, 2747, 7911, 8241, 12013, 19631, 24723, 36039, 58893, 74169, 108117, 176679, 324351, 530037, 804871, 2414613, 7243839, 21731517]

約数ペア:

[(1, 21731517), (3, 7243839), (9, 2414613), (27, 804871), (41, 530037), (67, 324351), (123, 176679), (201, 108117), (293, 74169), (369, 58893), (603, 36039), (879, 24723), (1107, 19631), (1809, 12013), (2637, 8241), (2747, 7911)]