21586420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{281}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 47755008

約数和(自身を除く): 26168588

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 167, 230, 281, 334, 460, 562, 668, 835, 1124, 1405, 1670, 2810, 3340, 3841, 5620, 6463, 7682, 12926, 15364, 19205, 25852, 32315, 38410, 46927, 64630, 76820, 93854, 129260, 187708, 234635, 469270, 938540, 1079321, 2158642, 4317284, 5396605, 10793210, 21586420]

約数ペア:

[(1, 21586420), (2, 10793210), (4, 5396605), (5, 4317284), (10, 2158642), (20, 1079321), (23, 938540), (46, 469270), (92, 234635), (115, 187708), (167, 129260), (230, 93854), (281, 76820), (334, 64630), (460, 46927), (562, 38410), (668, 32315), (835, 25852), (1124, 19205), (1405, 15364), (1670, 12926), (2810, 7682), (3340, 6463), (3841, 5620)]