21508986

素因数分解:

$2^1\times 3^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{857}}^1$

素因数の和:998

約数の個数: 32

約数和(自身を含む): 44478720

約数和(自身を除く): 22969734

約数列:

[1, 2, 3, 6, 47, 89, 94, 141, 178, 267, 282, 534, 857, 1714, 2571, 4183, 5142, 8366, 12549, 25098, 40279, 76273, 80558, 120837, 152546, 228819, 241674, 457638, 3584831, 7169662, 10754493, 21508986]

約数ペア:

[(1, 21508986), (2, 10754493), (3, 7169662), (6, 3584831), (47, 457638), (89, 241674), (94, 228819), (141, 152546), (178, 120837), (267, 80558), (282, 76273), (534, 40279), (857, 25098), (1714, 12549), (2571, 8366), (4183, 5142)]