21483609

素因数分解:

$3^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{1447}}^1$

素因数の和:1565

約数の個数: 24

約数和(自身を含む): 33674688

約数和(自身を除く): 12191079

約数列:

[1, 3, 7, 21, 49, 101, 147, 303, 707, 1447, 2121, 4341, 4949, 10129, 14847, 30387, 70903, 146147, 212709, 438441, 1023029, 3069087, 7161203, 21483609]

約数ペア:

[(1, 21483609), (3, 7161203), (7, 3069087), (21, 1023029), (49, 438441), (101, 212709), (147, 146147), (303, 70903), (707, 30387), (1447, 14847), (2121, 10129), (4341, 4949)]