20155249089

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1\times {\mathrm{857}}^1$

素因数の和:1387

約数の個数: 64

約数和(自身を含む): 31313018880

約数和(自身を除く): 11157769791

約数列:

[1, 3, 9, 27, 43, 47, 129, 141, 387, 423, 431, 857, 1161, 1269, 1293, 2021, 2571, 3879, 6063, 7713, 11637, 18189, 18533, 20257, 23139, 36851, 40279, 54567, 55599, 60771, 110553, 120837, 166797, 182313, 331659, 362511, 369367, 500391, 546939, 871051, 994977, 1087533, 1108101, 1731997, 2613153, 3324303, 5195991, 7839459, 9972909, 15587973, 15882781, 17360249, 23518377, 46763919, 47648343, 52080747, 142945029, 156242241, 428835087, 468726723, 746490707, 2239472121, 6718416363, 20155249089]

約数ペア:

[(1, 20155249089), (3, 6718416363), (9, 2239472121), (27, 746490707), (43, 468726723), (47, 428835087), (129, 156242241), (141, 142945029), (387, 52080747), (423, 47648343), (431, 46763919), (857, 23518377), (1161, 17360249), (1269, 15882781), (1293, 15587973), (2021, 9972909), (2571, 7839459), (3879, 5195991), (6063, 3324303), (7713, 2613153), (11637, 1731997), (18189, 1108101), (18533, 1087533), (20257, 994977), (23139, 871051), (36851, 546939), (40279, 500391), (54567, 369367), (55599, 362511), (60771, 331659), (110553, 182313), (120837, 166797)]