221467897

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:530

約数の個数: 32

約数和(自身を含む): 274176000

約数和(自身を除く): 52708103

約数列:

[1, 7, 23, 49, 67, 161, 343, 419, 469, 1127, 1541, 2933, 3283, 7889, 9637, 10787, 20531, 22981, 28073, 67459, 75509, 143717, 196511, 472213, 528563, 645679, 1375577, 3305491, 4519753, 9629039, 31638271, 221467897]

約数ペア:

[(1, 221467897), (7, 31638271), (23, 9629039), (49, 4519753), (67, 3305491), (161, 1375577), (343, 645679), (419, 528563), (469, 472213), (1127, 196511), (1541, 143717), (2933, 75509), (3283, 67459), (7889, 28073), (9637, 22981), (10787, 20531)]