20640074

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{953}}^1$

素因数の和:999

約数の個数: 48

約数和(自身を含む): 41109768

約数和(自身を除く): 20469694

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 49, 91, 98, 119, 182, 221, 238, 442, 637, 833, 953, 1274, 1547, 1666, 1906, 3094, 6671, 10829, 12389, 13342, 16201, 21658, 24778, 32402, 46697, 86723, 93394, 113407, 173446, 210613, 226814, 421226, 607061, 793849, 1214122, 1474291, 1587698, 2948582, 10320037, 20640074]

約数ペア:

[(1, 20640074), (2, 10320037), (7, 2948582), (13, 1587698), (14, 1474291), (17, 1214122), (26, 793849), (34, 607061), (49, 421226), (91, 226814), (98, 210613), (119, 173446), (182, 113407), (221, 93394), (238, 86723), (442, 46697), (637, 32402), (833, 24778), (953, 21658), (1274, 16201), (1547, 13342), (1666, 12389), (1906, 10829), (3094, 6671)]