21697564

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{14621}}^1$

素因数の和:14685

約数の個数: 24

約数和(自身を含む): 44216928

約数和(自身を除く): 22519364

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 14621, 29242, 58484, 102347, 204694, 409388, 774913, 1549826, 3099652, 5424391, 10848782, 21697564]

約数ペア:

[(1, 21697564), (2, 10848782), (4, 5424391), (7, 3099652), (14, 1549826), (28, 774913), (53, 409388), (106, 204694), (212, 102347), (371, 58484), (742, 29242), (1484, 14621)]