21087468

素因数分解:

$2^2\times 3^2\times {\mathrm{491}}^1\times {\mathrm{1193}}^1$

素因数の和:1694

約数の個数: 36

約数和(自身を含む): 53457768

約数和(自身を除く): 32370300

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 491, 982, 1193, 1473, 1964, 2386, 2946, 3579, 4419, 4772, 5892, 7158, 8838, 10737, 14316, 17676, 21474, 42948, 585763, 1171526, 1757289, 2343052, 3514578, 5271867, 7029156, 10543734, 21087468]

約数ペア:

[(1, 21087468), (2, 10543734), (3, 7029156), (4, 5271867), (6, 3514578), (9, 2343052), (12, 1757289), (18, 1171526), (36, 585763), (491, 42948), (982, 21474), (1193, 17676), (1473, 14316), (1964, 10737), (2386, 8838), (2946, 7158), (3579, 5892), (4419, 4772)]