21900554

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{691}}^1$

素因数の和:782

約数の個数: 32

約数和(自身を含む): 37666944

約数和(自身を除く): 15766390

約数列:

[1, 2, 13, 23, 26, 46, 53, 106, 299, 598, 689, 691, 1219, 1378, 1382, 2438, 8983, 15847, 15893, 17966, 31694, 31786, 36623, 73246, 206609, 413218, 476099, 842329, 952198, 1684658, 10950277, 21900554]

約数ペア:

[(1, 21900554), (2, 10950277), (13, 1684658), (23, 952198), (26, 842329), (46, 476099), (53, 413218), (106, 206609), (299, 73246), (598, 36623), (689, 31786), (691, 31694), (1219, 17966), (1378, 15893), (1382, 15847), (2438, 8983)]