19810518

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{2791}}^1$

素因数の和:2829

約数の個数: 48

約数和(自身を含む): 49049856

約数和(自身を除く): 29239338

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 169, 182, 273, 338, 507, 546, 1014, 1183, 2366, 2791, 3549, 5582, 7098, 8373, 16746, 19537, 36283, 39074, 58611, 72566, 108849, 117222, 217698, 253981, 471679, 507962, 761943, 943358, 1415037, 1523886, 2830074, 3301753, 6603506, 9905259, 19810518]

約数ペア:

[(1, 19810518), (2, 9905259), (3, 6603506), (6, 3301753), (7, 2830074), (13, 1523886), (14, 1415037), (21, 943358), (26, 761943), (39, 507962), (42, 471679), (78, 253981), (91, 217698), (169, 117222), (182, 108849), (273, 72566), (338, 58611), (507, 39074), (546, 36283), (1014, 19537), (1183, 16746), (2366, 8373), (2791, 7098), (3549, 5582)]