21207852

素因数分解:

$2^2\times 3^3\times {\mathrm{131}}^1\times {\mathrm{1499}}^1$

素因数の和:1643

約数の個数: 48

約数和(自身を含む): 55440000

約数和(自身を除く): 34232148

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 131, 262, 393, 524, 786, 1179, 1499, 1572, 2358, 2998, 3537, 4497, 4716, 5996, 7074, 8994, 13491, 14148, 17988, 26982, 40473, 53964, 80946, 161892, 196369, 392738, 589107, 785476, 1178214, 1767321, 2356428, 3534642, 5301963, 7069284, 10603926, 21207852]

約数ペア:

[(1, 21207852), (2, 10603926), (3, 7069284), (4, 5301963), (6, 3534642), (9, 2356428), (12, 1767321), (18, 1178214), (27, 785476), (36, 589107), (54, 392738), (108, 196369), (131, 161892), (262, 80946), (393, 53964), (524, 40473), (786, 26982), (1179, 17988), (1499, 14148), (1572, 13491), (2358, 8994), (2998, 7074), (3537, 5996), (4497, 4716)]