21676395

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1249}}^1$

素因数の和:1359

約数の個数: 32

約数和(自身を含む): 37800000

約数和(自身を除く): 16123605

約数列:

[1, 3, 5, 13, 15, 39, 65, 89, 195, 267, 445, 1157, 1249, 1335, 3471, 3747, 5785, 6245, 16237, 17355, 18735, 48711, 81185, 111161, 243555, 333483, 555805, 1445093, 1667415, 4335279, 7225465, 21676395]

約数ペア:

[(1, 21676395), (3, 7225465), (5, 4335279), (13, 1667415), (15, 1445093), (39, 555805), (65, 333483), (89, 243555), (195, 111161), (267, 81185), (445, 48711), (1157, 18735), (1249, 17355), (1335, 16237), (3471, 6245), (3747, 5785)]