20578974

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{11471}}^1$

素因数の和:11512

約数の個数: 32

約数和(自身を含む): 46255104

約数和(自身を除く): 25676130

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 299, 598, 897, 1794, 11471, 22942, 34413, 68826, 149123, 263833, 298246, 447369, 527666, 791499, 894738, 1582998, 3429829, 6859658, 10289487, 20578974]

約数ペア:

[(1, 20578974), (2, 10289487), (3, 6859658), (6, 3429829), (13, 1582998), (23, 894738), (26, 791499), (39, 527666), (46, 447369), (69, 298246), (78, 263833), (138, 149123), (299, 68826), (598, 34413), (897, 22942), (1794, 11471)]