20761245

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5303}}^1$

素因数の和:5346

約数の個数: 32

約数和(自身を含む): 38188800

約数和(自身を除く): 17427555

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 5303, 15909, 26515, 47727, 79545, 143181, 153787, 238635, 461361, 715905, 768935, 1384083, 2306805, 4152249, 6920415, 20761245]

約数ペア:

[(1, 20761245), (3, 6920415), (5, 4152249), (9, 2306805), (15, 1384083), (27, 768935), (29, 715905), (45, 461361), (87, 238635), (135, 153787), (145, 143181), (261, 79545), (435, 47727), (783, 26515), (1305, 15909), (3915, 5303)]