21354741

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1453}}^1$

素因数の和:1553

約数の個数: 24

約数和(自身を含む): 32662656

約数和(自身を除く): 11307915

約数列:

[1, 3, 9, 23, 69, 71, 207, 213, 639, 1453, 1633, 4359, 4899, 13077, 14697, 33419, 100257, 103163, 300771, 309489, 928467, 2372749, 7118247, 21354741]

約数ペア:

[(1, 21354741), (3, 7118247), (9, 2372749), (23, 928467), (69, 309489), (71, 300771), (207, 103163), (213, 100257), (639, 33419), (1453, 14697), (1633, 13077), (4359, 4899)]