20005111287

素因数分解:

$3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{691}}^1\times {\mathrm{2927}}^1$

素因数の和:3788

約数の個数: 48

約数和(自身を含む): 33294124032

約数和(自身を除く): 13289012745

約数列:

[1, 3, 7, 9, 21, 63, 157, 471, 691, 1099, 1413, 2073, 2927, 3297, 4837, 6219, 8781, 9891, 14511, 20489, 26343, 43533, 61467, 108487, 184401, 325461, 459539, 759409, 976383, 1378617, 2022557, 2278227, 3216773, 4135851, 6067671, 6834681, 9650319, 14157899, 18203013, 28950957, 42473697, 127421091, 317541449, 952624347, 2222790143, 2857873041, 6668370429, 20005111287]

約数ペア:

[(1, 20005111287), (3, 6668370429), (7, 2857873041), (9, 2222790143), (21, 952624347), (63, 317541449), (157, 127421091), (471, 42473697), (691, 28950957), (1099, 18203013), (1413, 14157899), (2073, 9650319), (2927, 6834681), (3297, 6067671), (4837, 4135851), (6219, 3216773), (8781, 2278227), (9891, 2022557), (14511, 1378617), (20489, 976383), (26343, 759409), (43533, 459539), (61467, 325461), (108487, 184401)]