20543390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9467}}^1$

素因数の和:9512

約数の個数: 32

約数和(自身を含む): 43628544

約数和(自身を除く): 23085154

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9467, 18934, 47335, 66269, 94670, 132538, 293477, 331345, 586954, 662690, 1467385, 2054339, 2934770, 4108678, 10271695, 20543390]

約数ペア:

[(1, 20543390), (2, 10271695), (5, 4108678), (7, 2934770), (10, 2054339), (14, 1467385), (31, 662690), (35, 586954), (62, 331345), (70, 293477), (155, 132538), (217, 94670), (310, 66269), (434, 47335), (1085, 18934), (2170, 9467)]