221363961

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{19777}}^1$

素因数の和:19841

約数の個数: 32

約数和(自身を含む): 372142848

約数和(自身を除く): 150778887

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 861, 1599, 3731, 11193, 19777, 59331, 138439, 257101, 415317, 771303, 810857, 1799707, 2432571, 5399121, 5675999, 10541141, 17027997, 31623423, 73787987, 221363961]

約数ペア:

[(1, 221363961), (3, 73787987), (7, 31623423), (13, 17027997), (21, 10541141), (39, 5675999), (41, 5399121), (91, 2432571), (123, 1799707), (273, 810857), (287, 771303), (533, 415317), (861, 257101), (1599, 138439), (3731, 59331), (11193, 19777)]