20931970

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{48679}}^1$

素因数の和:48729

約数の個数: 16

約数和(自身を含む): 38554560

約数和(自身を除く): 17622590

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 48679, 97358, 243395, 486790, 2093197, 4186394, 10465985, 20931970]

約数ペア:

[(1, 20931970), (2, 10465985), (5, 4186394), (10, 2093197), (43, 486790), (86, 243395), (215, 97358), (430, 48679)]