21863765

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 33073920

約数和(自身を除く): 11210155

約数列:

[1, 5, 7, 11, 35, 55, 77, 109, 385, 521, 545, 763, 1199, 2605, 3647, 3815, 5731, 5995, 8393, 18235, 28655, 40117, 41965, 56789, 200585, 283945, 397523, 624679, 1987615, 3123395, 4372753, 21863765]

約数ペア:

[(1, 21863765), (5, 4372753), (7, 3123395), (11, 1987615), (35, 624679), (55, 397523), (77, 283945), (109, 200585), (385, 56789), (521, 41965), (545, 40117), (763, 28655), (1199, 18235), (2605, 8393), (3647, 5995), (3815, 5731)]