21738486

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 54706176

約数和(自身を除く): 32967690

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 211, 223, 231, 422, 446, 462, 633, 669, 1266, 1338, 1477, 1561, 2321, 2453, 2954, 3122, 4431, 4642, 4683, 4906, 6963, 7359, 8862, 9366, 13926, 14718, 16247, 17171, 32494, 34342, 47053, 48741, 51513, 94106, 97482, 103026, 141159, 282318, 329371, 517583, 658742, 988113, 1035166, 1552749, 1976226, 3105498, 3623081, 7246162, 10869243, 21738486]

約数ペア:

[(1, 21738486), (2, 10869243), (3, 7246162), (6, 3623081), (7, 3105498), (11, 1976226), (14, 1552749), (21, 1035166), (22, 988113), (33, 658742), (42, 517583), (66, 329371), (77, 282318), (154, 141159), (211, 103026), (223, 97482), (231, 94106), (422, 51513), (446, 48741), (462, 47053), (633, 34342), (669, 32494), (1266, 17171), (1338, 16247), (1477, 14718), (1561, 13926), (2321, 9366), (2453, 8862), (2954, 7359), (3122, 6963), (4431, 4906), (4642, 4683)]