21493914

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{11981}}^1$

素因数の和:12022

約数の個数: 32

約数和(自身を含む): 48311424

約数和(自身を除く): 26817510

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 299, 598, 897, 1794, 11981, 23962, 35943, 71886, 155753, 275563, 311506, 467259, 551126, 826689, 934518, 1653378, 3582319, 7164638, 10746957, 21493914]

約数ペア:

[(1, 21493914), (2, 10746957), (3, 7164638), (6, 3582319), (13, 1653378), (23, 934518), (26, 826689), (39, 551126), (46, 467259), (69, 311506), (78, 275563), (138, 155753), (299, 71886), (598, 35943), (897, 23962), (1794, 11981)]