31415553

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:159

約数の個数: 64

約数和(自身を含む): 53625600

約数和(自身を除く): 22210047

約数列:

[1, 3, 9, 13, 27, 37, 39, 41, 59, 111, 117, 123, 177, 333, 351, 369, 481, 531, 533, 767, 999, 1107, 1443, 1517, 1593, 1599, 2183, 2301, 2419, 4329, 4551, 4797, 6549, 6903, 7257, 12987, 13653, 14391, 19647, 19721, 20709, 21771, 28379, 31447, 40959, 58941, 59163, 65313, 85137, 89503, 94341, 177489, 255411, 268509, 283023, 532467, 766233, 805527, 849069, 1163539, 2416581, 3490617, 10471851, 31415553]

約数ペア:

[(1, 31415553), (3, 10471851), (9, 3490617), (13, 2416581), (27, 1163539), (37, 849069), (39, 805527), (41, 766233), (59, 532467), (111, 283023), (117, 268509), (123, 255411), (177, 177489), (333, 94341), (351, 89503), (369, 85137), (481, 65313), (531, 59163), (533, 58941), (767, 40959), (999, 31447), (1107, 28379), (1443, 21771), (1517, 20709), (1593, 19721), (1599, 19647), (2183, 14391), (2301, 13653), (2419, 12987), (4329, 7257), (4551, 6903), (4797, 6549)]