21458664

素因数分解:

$2^3\times 3^2\times {\mathrm{491}}^1\times {\mathrm{607}}^1$

素因数の和:1110

約数の個数: 48

約数和(自身を含む): 58331520

約数和(自身を除く): 36872856

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 491, 607, 982, 1214, 1473, 1821, 1964, 2428, 2946, 3642, 3928, 4419, 4856, 5463, 5892, 7284, 8838, 10926, 11784, 14568, 17676, 21852, 35352, 43704, 298037, 596074, 894111, 1192148, 1788222, 2384296, 2682333, 3576444, 5364666, 7152888, 10729332, 21458664]

約数ペア:

[(1, 21458664), (2, 10729332), (3, 7152888), (4, 5364666), (6, 3576444), (8, 2682333), (9, 2384296), (12, 1788222), (18, 1192148), (24, 894111), (36, 596074), (72, 298037), (491, 43704), (607, 35352), (982, 21852), (1214, 17676), (1473, 14568), (1821, 11784), (1964, 10926), (2428, 8838), (2946, 7284), (3642, 5892), (3928, 5463), (4419, 4856)]