19954755

素因数分解:

$3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1699}}^1$

素因数の和:1745

約数の個数: 40

約数和(自身を含む): 37026000

約数和(自身を除く): 17071245

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 81, 87, 135, 145, 261, 405, 435, 783, 1305, 1699, 2349, 3915, 5097, 8495, 11745, 15291, 25485, 45873, 49271, 76455, 137619, 147813, 229365, 246355, 443439, 688095, 739065, 1330317, 2217195, 3990951, 6651585, 19954755]

約数ペア:

[(1, 19954755), (3, 6651585), (5, 3990951), (9, 2217195), (15, 1330317), (27, 739065), (29, 688095), (45, 443439), (81, 246355), (87, 229365), (135, 147813), (145, 137619), (261, 76455), (405, 49271), (435, 45873), (783, 25485), (1305, 15291), (1699, 11745), (2349, 8495), (3915, 5097)]