21139530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{30637}}^1$

素因数の和:30670

約数の個数: 32

約数和(自身を含む): 52942464

約数和(自身を除く): 31802934

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 30637, 61274, 91911, 153185, 183822, 306370, 459555, 704651, 919110, 1409302, 2113953, 3523255, 4227906, 7046510, 10569765, 21139530]

約数ペア:

[(1, 21139530), (2, 10569765), (3, 7046510), (5, 4227906), (6, 3523255), (10, 2113953), (15, 1409302), (23, 919110), (30, 704651), (46, 459555), (69, 306370), (115, 183822), (138, 153185), (230, 91911), (345, 61274), (690, 30637)]