21620852

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{1009}}^1$

素因数の和:1511

約数の個数: 24

約数和(自身を含む): 41401920

約数和(自身を除く): 19781068

約数列:

[1, 2, 4, 11, 22, 44, 487, 974, 1009, 1948, 2018, 4036, 5357, 10714, 11099, 21428, 22198, 44396, 491383, 982766, 1965532, 5405213, 10810426, 21620852]

約数ペア:

[(1, 21620852), (2, 10810426), (4, 5405213), (11, 1965532), (22, 982766), (44, 491383), (487, 44396), (974, 22198), (1009, 21428), (1948, 11099), (2018, 10714), (4036, 5357)]