19515385

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4139}}^1$

素因数の和:4208

約数の個数: 16

約数和(自身を含む): 25038720

約数和(自身を除く): 5523335

約数列:

[1, 5, 23, 41, 115, 205, 943, 4139, 4715, 20695, 95197, 169699, 475985, 848495, 3903077, 19515385]

約数ペア:

[(1, 19515385), (5, 3903077), (23, 848495), (41, 475985), (115, 169699), (205, 95197), (943, 20695), (4139, 4715)]