21208760

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23053}}^1$

素因数の和:23087

約数の個数: 32

約数和(自身を含む): 49796640

約数和(自身を除く): 28587880

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23053, 46106, 92212, 115265, 184424, 230530, 461060, 530219, 922120, 1060438, 2120876, 2651095, 4241752, 5302190, 10604380, 21208760]

約数ペア:

[(1, 21208760), (2, 10604380), (4, 5302190), (5, 4241752), (8, 2651095), (10, 2120876), (20, 1060438), (23, 922120), (40, 530219), (46, 461060), (92, 230530), (115, 184424), (184, 115265), (230, 92212), (460, 46106), (920, 23053)]