21297705

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9929}}^1$

素因数の和:9961

約数の個数: 32

約数和(自身を含む): 40037760

約数和(自身を除く): 18740055

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145, 9929, 29787, 49645, 109219, 129077, 148935, 327657, 387231, 546095, 645385, 1419847, 1638285, 1936155, 4259541, 7099235, 21297705]

約数ペア:

[(1, 21297705), (3, 7099235), (5, 4259541), (11, 1936155), (13, 1638285), (15, 1419847), (33, 645385), (39, 546095), (55, 387231), (65, 327657), (143, 148935), (165, 129077), (195, 109219), (429, 49645), (715, 29787), (2145, 9929)]