20166783

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 34435296

約数和(自身を除く): 14268513

約数列:

[1, 3, 7, 13, 21, 39, 49, 61, 91, 147, 173, 183, 273, 427, 519, 637, 793, 1211, 1281, 1911, 2249, 2379, 2989, 3633, 5551, 6747, 8477, 8967, 10553, 15743, 16653, 25431, 31659, 38857, 47229, 73871, 110201, 116571, 137189, 221613, 330603, 411567, 517097, 960323, 1551291, 2880969, 6722261, 20166783]

約数ペア:

[(1, 20166783), (3, 6722261), (7, 2880969), (13, 1551291), (21, 960323), (39, 517097), (49, 411567), (61, 330603), (91, 221613), (147, 137189), (173, 116571), (183, 110201), (273, 73871), (427, 47229), (519, 38857), (637, 31659), (793, 25431), (1211, 16653), (1281, 15743), (1911, 10553), (2249, 8967), (2379, 8477), (2989, 6747), (3633, 5551)]