31981599

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 52284960

約数和(自身を除く): 20303361

約数列:

[1, 3, 9, 13, 39, 41, 59, 113, 117, 123, 177, 339, 369, 531, 533, 767, 1017, 1469, 1599, 2301, 2419, 4407, 4633, 4797, 6667, 6903, 7257, 13221, 13899, 20001, 21771, 31447, 41697, 60003, 60229, 86671, 94341, 180687, 260013, 273347, 283023, 542061, 780039, 820041, 2460123, 3553511, 10660533, 31981599]

約数ペア:

[(1, 31981599), (3, 10660533), (9, 3553511), (13, 2460123), (39, 820041), (41, 780039), (59, 542061), (113, 283023), (117, 273347), (123, 260013), (177, 180687), (339, 94341), (369, 86671), (531, 60229), (533, 60003), (767, 41697), (1017, 31447), (1469, 21771), (1599, 20001), (2301, 13899), (2419, 13221), (4407, 7257), (4633, 6903), (4797, 6667)]