21454335

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{311}}^1$

素因数の和:405

約数の個数: 64

約数和(自身を含む): 44328960

約数和(自身を除く): 22874625

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 73, 105, 135, 189, 219, 311, 315, 365, 511, 657, 933, 945, 1095, 1533, 1555, 1971, 2177, 2555, 2799, 3285, 4599, 4665, 6531, 7665, 8397, 9855, 10885, 13797, 13995, 19593, 22703, 22995, 32655, 41985, 58779, 68109, 68985, 97965, 113515, 158921, 204327, 293895, 340545, 476763, 612981, 794605, 1021635, 1430289, 2383815, 3064905, 4290867, 7151445, 21454335]

約数ペア:

[(1, 21454335), (3, 7151445), (5, 4290867), (7, 3064905), (9, 2383815), (15, 1430289), (21, 1021635), (27, 794605), (35, 612981), (45, 476763), (63, 340545), (73, 293895), (105, 204327), (135, 158921), (189, 113515), (219, 97965), (311, 68985), (315, 68109), (365, 58779), (511, 41985), (657, 32655), (933, 22995), (945, 22703), (1095, 19593), (1533, 13995), (1555, 13797), (1971, 10885), (2177, 9855), (2555, 8397), (2799, 7665), (3285, 6531), (4599, 4665)]