21528948

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1301}}^1$

素因数の和:1512

約数の個数: 48

約数和(自身を含む): 57746304

約数和(自身を除く): 36217356

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 197, 394, 591, 788, 1182, 1301, 1379, 2364, 2602, 2758, 3903, 4137, 5204, 5516, 7806, 8274, 9107, 15612, 16548, 18214, 27321, 36428, 54642, 109284, 256297, 512594, 768891, 1025188, 1537782, 1794079, 3075564, 3588158, 5382237, 7176316, 10764474, 21528948]

約数ペア:

[(1, 21528948), (2, 10764474), (3, 7176316), (4, 5382237), (6, 3588158), (7, 3075564), (12, 1794079), (14, 1537782), (21, 1025188), (28, 768891), (42, 512594), (84, 256297), (197, 109284), (394, 54642), (591, 36428), (788, 27321), (1182, 18214), (1301, 16548), (1379, 15612), (2364, 9107), (2602, 8274), (2758, 7806), (3903, 5516), (4137, 5204)]