20734578

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:399

約数の個数: 48

約数和(自身を含む): 46665216

約数和(自身を除く): 25930638

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 163, 191, 222, 326, 333, 382, 489, 573, 666, 978, 1146, 1467, 1719, 2934, 3438, 6031, 7067, 12062, 14134, 18093, 21201, 31133, 36186, 42402, 54279, 62266, 63603, 93399, 108558, 127206, 186798, 280197, 560394, 1151921, 2303842, 3455763, 6911526, 10367289, 20734578]

約数ペア:

[(1, 20734578), (2, 10367289), (3, 6911526), (6, 3455763), (9, 2303842), (18, 1151921), (37, 560394), (74, 280197), (111, 186798), (163, 127206), (191, 108558), (222, 93399), (326, 63603), (333, 62266), (382, 54279), (489, 42402), (573, 36186), (666, 31133), (978, 21201), (1146, 18093), (1467, 14134), (1719, 12062), (2934, 7067), (3438, 6031)]