21000659360

素因数分解:

$2^5\times 5^1\times {\mathrm{131254121}}^1$

素因数の和:131254136

約数の個数: 24

約数和(自身を含む): 49614058116

約数和(自身を除く): 28613398756

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 131254121, 262508242, 525016484, 656270605, 1050032968, 1312541210, 2100065936, 2625082420, 4200131872, 5250164840, 10500329680, 21000659360]

約数ペア:

[(1, 21000659360), (2, 10500329680), (4, 5250164840), (5, 4200131872), (8, 2625082420), (10, 2100065936), (16, 1312541210), (20, 1050032968), (32, 656270605), (40, 525016484), (80, 262508242), (160, 131254121)]