20167665

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1193}}^1$

素因数の和:1238

約数の個数: 48

約数和(自身を含む): 39201408

約数和(自身を除く): 19033743

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 49, 69, 105, 115, 147, 161, 245, 345, 483, 735, 805, 1127, 1193, 2415, 3381, 3579, 5635, 5965, 8351, 16905, 17895, 25053, 27439, 41755, 58457, 82317, 125265, 137195, 175371, 192073, 292285, 411585, 576219, 876855, 960365, 1344511, 2881095, 4033533, 6722555, 20167665]

約数ペア:

[(1, 20167665), (3, 6722555), (5, 4033533), (7, 2881095), (15, 1344511), (21, 960365), (23, 876855), (35, 576219), (49, 411585), (69, 292285), (105, 192073), (115, 175371), (147, 137195), (161, 125265), (245, 82317), (345, 58457), (483, 41755), (735, 27439), (805, 25053), (1127, 17895), (1193, 16905), (2415, 8351), (3381, 5965), (3579, 5635)]