21945672

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{43543}}^1$

素因数の和:43562

約数の個数: 48

約数和(自身を含む): 67928640

約数和(自身を除く): 45982968

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 43543, 87086, 130629, 174172, 261258, 304801, 348344, 391887, 522516, 609602, 783774, 914403, 1045032, 1219204, 1567548, 1828806, 2438408, 2743209, 3135096, 3657612, 5486418, 7315224, 10972836, 21945672]

約数ペア:

[(1, 21945672), (2, 10972836), (3, 7315224), (4, 5486418), (6, 3657612), (7, 3135096), (8, 2743209), (9, 2438408), (12, 1828806), (14, 1567548), (18, 1219204), (21, 1045032), (24, 914403), (28, 783774), (36, 609602), (42, 522516), (56, 391887), (63, 348344), (72, 304801), (84, 261258), (126, 174172), (168, 130629), (252, 87086), (504, 43543)]