21196665

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9613}}^1$

素因数の和:9638

約数の個数: 36

約数和(自身を含む): 42743844

約数和(自身を除く): 21547179

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9613, 28839, 48065, 67291, 86517, 144195, 201873, 336455, 432585, 471037, 605619, 1009365, 1413111, 2355185, 3028095, 4239333, 7065555, 21196665]

約数ペア:

[(1, 21196665), (3, 7065555), (5, 4239333), (7, 3028095), (9, 2355185), (15, 1413111), (21, 1009365), (35, 605619), (45, 471037), (49, 432585), (63, 336455), (105, 201873), (147, 144195), (245, 86517), (315, 67291), (441, 48065), (735, 28839), (2205, 9613)]