21000686694

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1806977}}^1$

素因数の和:1807144

約数の個数: 32

約数和(自身を含む): 45535845600

約数和(自身を除く): 24535158906

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 149, 298, 447, 894, 1937, 3874, 5811, 11622, 1806977, 3613954, 5420931, 10841862, 23490701, 46981402, 70472103, 140944206, 269239573, 538479146, 807718719, 1615437438, 3500114449, 7000228898, 10500343347, 21000686694]

約数ペア:

[(1, 21000686694), (2, 10500343347), (3, 7000228898), (6, 3500114449), (13, 1615437438), (26, 807718719), (39, 538479146), (78, 269239573), (149, 140944206), (298, 70472103), (447, 46981402), (894, 23490701), (1937, 10841862), (3874, 5420931), (5811, 3613954), (11622, 1806977)]