20402403

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{797}}^1$

素因数の和:883

約数の個数: 32

約数和(自身を含む): 33094656

約数和(自身を除く): 12692253

約数列:

[1, 3, 7, 21, 23, 53, 69, 159, 161, 371, 483, 797, 1113, 1219, 2391, 3657, 5579, 8533, 16737, 18331, 25599, 42241, 54993, 126723, 128317, 295687, 384951, 887061, 971543, 2914629, 6800801, 20402403]

約数ペア:

[(1, 20402403), (3, 6800801), (7, 2914629), (21, 971543), (23, 887061), (53, 384951), (69, 295687), (159, 128317), (161, 126723), (371, 54993), (483, 42241), (797, 25599), (1113, 18331), (1219, 16737), (2391, 8533), (3657, 5579)]