20356518

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1621}}^1$

素因数の和:1669

約数の個数: 64

約数和(自身を含む): 52319232

約数和(自身を除く): 31962714

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 23, 26, 39, 42, 46, 69, 78, 91, 138, 161, 182, 273, 299, 322, 483, 546, 598, 897, 966, 1621, 1794, 2093, 3242, 4186, 4863, 6279, 9726, 11347, 12558, 21073, 22694, 34041, 37283, 42146, 63219, 68082, 74566, 111849, 126438, 147511, 223698, 260981, 295022, 442533, 484679, 521962, 782943, 885066, 969358, 1454037, 1565886, 2908074, 3392753, 6785506, 10178259, 20356518]

約数ペア:

[(1, 20356518), (2, 10178259), (3, 6785506), (6, 3392753), (7, 2908074), (13, 1565886), (14, 1454037), (21, 969358), (23, 885066), (26, 782943), (39, 521962), (42, 484679), (46, 442533), (69, 295022), (78, 260981), (91, 223698), (138, 147511), (161, 126438), (182, 111849), (273, 74566), (299, 68082), (322, 63219), (483, 42146), (546, 37283), (598, 34041), (897, 22694), (966, 21073), (1621, 12558), (1794, 11347), (2093, 9726), (3242, 6279), (4186, 4863)]