21504868

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69821}}^1$

素因数の和:69843

約数の個数: 24

約数和(自身を含む): 46920384

約数和(自身を除く): 25415516

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69821, 139642, 279284, 488747, 768031, 977494, 1536062, 1954988, 3072124, 5376217, 10752434, 21504868]

約数ペア:

[(1, 21504868), (2, 10752434), (4, 5376217), (7, 3072124), (11, 1954988), (14, 1536062), (22, 977494), (28, 768031), (44, 488747), (77, 279284), (154, 139642), (308, 69821)]