20681808

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{61553}}^1$

素因数の和:61571

約数の個数: 40

約数和(自身を含む): 61061568

約数和(自身を除く): 40379760

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 61553, 123106, 184659, 246212, 369318, 430871, 492424, 738636, 861742, 984848, 1292613, 1477272, 1723484, 2585226, 2954544, 3446968, 5170452, 6893936, 10340904, 20681808]

約数ペア:

[(1, 20681808), (2, 10340904), (3, 6893936), (4, 5170452), (6, 3446968), (7, 2954544), (8, 2585226), (12, 1723484), (14, 1477272), (16, 1292613), (21, 984848), (24, 861742), (28, 738636), (42, 492424), (48, 430871), (56, 369318), (84, 246212), (112, 184659), (168, 123106), (336, 61553)]