21601372

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{853}}^1$

素因数の和:1357

約数の個数: 24

約数和(自身を含む): 40841696

約数和(自身を除く): 19240324

約数列:

[1, 2, 4, 13, 26, 52, 487, 853, 974, 1706, 1948, 3412, 6331, 11089, 12662, 22178, 25324, 44356, 415411, 830822, 1661644, 5400343, 10800686, 21601372]

約数ペア:

[(1, 21601372), (2, 10800686), (4, 5400343), (13, 1661644), (26, 830822), (52, 415411), (487, 44356), (853, 25324), (974, 22178), (1706, 12662), (1948, 11089), (3412, 6331)]