21154562

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 41731200

約数和(自身を除く): 20576638

約数列:

[1, 2, 11, 13, 17, 19, 22, 26, 34, 38, 143, 187, 209, 221, 229, 247, 286, 323, 374, 418, 442, 458, 494, 646, 2431, 2519, 2717, 2977, 3553, 3893, 4199, 4351, 4862, 5038, 5434, 5954, 7106, 7786, 8398, 8702, 32747, 42823, 46189, 47861, 50609, 56563, 65494, 73967, 85646, 92378, 95722, 101218, 113126, 147934, 556699, 622193, 813637, 961571, 1113398, 1244386, 1627274, 1923142, 10577281, 21154562]

約数ペア:

[(1, 21154562), (2, 10577281), (11, 1923142), (13, 1627274), (17, 1244386), (19, 1113398), (22, 961571), (26, 813637), (34, 622193), (38, 556699), (143, 147934), (187, 113126), (209, 101218), (221, 95722), (229, 92378), (247, 85646), (286, 73967), (323, 65494), (374, 56563), (418, 50609), (442, 47861), (458, 46189), (494, 42823), (646, 32747), (2431, 8702), (2519, 8398), (2717, 7786), (2977, 7106), (3553, 5954), (3893, 5434), (4199, 5038), (4351, 4862)]