21939746

素因数分解:

$2^1\times {\mathrm{23}}^2\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:370

約数の個数: 24

約数和(自身を含む): 34938540

約数和(自身を除く): 12998794

約数列:

[1, 2, 23, 46, 89, 178, 233, 466, 529, 1058, 2047, 4094, 5359, 10718, 20737, 41474, 47081, 94162, 123257, 246514, 476951, 953902, 10969873, 21939746]

約数ペア:

[(1, 21939746), (2, 10969873), (23, 953902), (46, 476951), (89, 246514), (178, 123257), (233, 94162), (466, 47081), (529, 41474), (1058, 20737), (2047, 10718), (4094, 5359)]