21053526

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8707}}^1$

素因数の和:8756

約数の個数: 32

約数和(自身を含む): 46814208

約数和(自身を除く): 25760682

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 8707, 17414, 26121, 52242, 113191, 226382, 269917, 339573, 539834, 679146, 809751, 1619502, 3508921, 7017842, 10526763, 21053526]

約数ペア:

[(1, 21053526), (2, 10526763), (3, 7017842), (6, 3508921), (13, 1619502), (26, 809751), (31, 679146), (39, 539834), (62, 339573), (78, 269917), (93, 226382), (186, 113191), (403, 52242), (806, 26121), (1209, 17414), (2418, 8707)]