31249881

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{503}}^1$

素因数の和:587

約数の個数: 40

約数和(自身を含む): 51226560

約数和(自身を除く): 19976679

約数列:

[1, 3, 9, 13, 27, 39, 59, 81, 117, 177, 351, 503, 531, 767, 1053, 1509, 1593, 2301, 4527, 4779, 6539, 6903, 13581, 19617, 20709, 29677, 40743, 58851, 62127, 89031, 176553, 267093, 385801, 529659, 801279, 1157403, 2403837, 3472209, 10416627, 31249881]

約数ペア:

[(1, 31249881), (3, 10416627), (9, 3472209), (13, 2403837), (27, 1157403), (39, 801279), (59, 529659), (81, 385801), (117, 267093), (177, 176553), (351, 89031), (503, 62127), (531, 58851), (767, 40743), (1053, 29677), (1509, 20709), (1593, 19617), (2301, 13581), (4527, 6903), (4779, 6539)]