21221050

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13691}}^1$

素因数の和:13734

約数の個数: 24

約数和(自身を含む): 40747392

約数和(自身を除く): 19526342

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 13691, 27382, 68455, 136910, 342275, 424421, 684550, 848842, 2122105, 4244210, 10610525, 21221050]

約数ペア:

[(1, 21221050), (2, 10610525), (5, 4244210), (10, 2122105), (25, 848842), (31, 684550), (50, 424421), (62, 342275), (155, 136910), (310, 68455), (775, 27382), (1550, 13691)]