20994078

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:349

約数の個数: 64

約数和(自身を含む): 50798592

約数和(自身を除く): 29804514

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 103, 138, 161, 206, 211, 309, 322, 422, 483, 618, 633, 721, 966, 1266, 1442, 1477, 2163, 2369, 2954, 4326, 4431, 4738, 4853, 7107, 8862, 9706, 14214, 14559, 16583, 21733, 29118, 33166, 33971, 43466, 49749, 65199, 67942, 99498, 101913, 130398, 152131, 203826, 304262, 456393, 499859, 912786, 999718, 1499577, 2999154, 3499013, 6998026, 10497039, 20994078]

約数ペア:

[(1, 20994078), (2, 10497039), (3, 6998026), (6, 3499013), (7, 2999154), (14, 1499577), (21, 999718), (23, 912786), (42, 499859), (46, 456393), (69, 304262), (103, 203826), (138, 152131), (161, 130398), (206, 101913), (211, 99498), (309, 67942), (322, 65199), (422, 49749), (483, 43466), (618, 33971), (633, 33166), (721, 29118), (966, 21733), (1266, 16583), (1442, 14559), (1477, 14214), (2163, 9706), (2369, 8862), (2954, 7107), (4326, 4853), (4431, 4738)]