20853975

素因数分解:

$3^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{2753}}^1$

素因数の和:2867

約数の個数: 24

約数和(自身を含む): 34832592

約数和(自身を除く): 13978617

約数列:

[1, 3, 5, 15, 25, 75, 101, 303, 505, 1515, 2525, 2753, 7575, 8259, 13765, 41295, 68825, 206475, 278053, 834159, 1390265, 4170795, 6951325, 20853975]

約数ペア:

[(1, 20853975), (3, 6951325), (5, 4170795), (15, 1390265), (25, 834159), (75, 278053), (101, 206475), (303, 68825), (505, 41295), (1515, 13765), (2525, 8259), (2753, 7575)]