42781557

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 72828672

約数和(自身を除く): 30047115

約数列:

[1, 3, 7, 13, 21, 39, 49, 61, 91, 147, 183, 273, 367, 427, 637, 793, 1101, 1281, 1911, 2379, 2569, 2989, 4771, 5551, 7707, 8967, 14313, 16653, 17983, 22387, 33397, 38857, 53949, 67161, 100191, 116571, 156709, 233779, 291031, 470127, 701337, 873093, 1096963, 2037217, 3290889, 6111651, 14260519, 42781557]

約数ペア:

[(1, 42781557), (3, 14260519), (7, 6111651), (13, 3290889), (21, 2037217), (39, 1096963), (49, 873093), (61, 701337), (91, 470127), (147, 291031), (183, 233779), (273, 156709), (367, 116571), (427, 100191), (637, 67161), (793, 53949), (1101, 38857), (1281, 33397), (1911, 22387), (2379, 17983), (2569, 16653), (2989, 14313), (4771, 8967), (5551, 7707)]