21406488

素因数分解:

$2^3\times 3^1\times {\mathrm{53}}^1\times {\mathrm{16829}}^1$

素因数の和:16891

約数の個数: 32

約数和(自身を含む): 54529200

約数和(自身を除く): 33122712

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636, 1272, 16829, 33658, 50487, 67316, 100974, 134632, 201948, 403896, 891937, 1783874, 2675811, 3567748, 5351622, 7135496, 10703244, 21406488]

約数ペア:

[(1, 21406488), (2, 10703244), (3, 7135496), (4, 5351622), (6, 3567748), (8, 2675811), (12, 1783874), (24, 891937), (53, 403896), (106, 201948), (159, 134632), (212, 100974), (318, 67316), (424, 50487), (636, 33658), (1272, 16829)]