31784319

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1933}}^1$

素因数の和:1981

約数の個数: 40

約数和(自身を含む): 56163360

約数和(自身を除く): 24379041

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 189, 203, 261, 567, 609, 783, 1827, 1933, 2349, 5481, 5799, 13531, 16443, 17397, 40593, 52191, 56057, 121779, 156573, 168171, 365337, 392399, 504513, 1096011, 1177197, 1513539, 3531591, 4540617, 10594773, 31784319]

約数ペア:

[(1, 31784319), (3, 10594773), (7, 4540617), (9, 3531591), (21, 1513539), (27, 1177197), (29, 1096011), (63, 504513), (81, 392399), (87, 365337), (189, 168171), (203, 156573), (261, 121779), (567, 56057), (609, 52191), (783, 40593), (1827, 17397), (1933, 16443), (2349, 13531), (5481, 5799)]