20674654

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1$

素因数の和:505

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 22870946

約数列:

[1, 2, 7, 11, 13, 14, 22, 23, 26, 46, 77, 91, 143, 154, 161, 182, 253, 286, 299, 322, 449, 506, 598, 898, 1001, 1771, 2002, 2093, 3143, 3289, 3542, 4186, 4939, 5837, 6286, 6578, 9878, 10327, 11674, 20654, 23023, 34573, 40859, 46046, 64207, 69146, 72289, 81718, 113597, 128414, 134251, 144578, 227194, 268502, 449449, 795179, 898898, 939757, 1476761, 1590358, 1879514, 2953522, 10337327, 20674654]

約数ペア:

[(1, 20674654), (2, 10337327), (7, 2953522), (11, 1879514), (13, 1590358), (14, 1476761), (22, 939757), (23, 898898), (26, 795179), (46, 449449), (77, 268502), (91, 227194), (143, 144578), (154, 134251), (161, 128414), (182, 113597), (253, 81718), (286, 72289), (299, 69146), (322, 64207), (449, 46046), (506, 40859), (598, 34573), (898, 23023), (1001, 20654), (1771, 11674), (2002, 10327), (2093, 9878), (3143, 6578), (3289, 6286), (3542, 5837), (4186, 4939)]