221088049

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{773}}^1$

素因数の和:1249

約数の個数: 24

約数和(自身を含む): 277943400

約数和(自身を除く): 56855351

約数列:

[1, 7, 13, 49, 91, 449, 637, 773, 3143, 5411, 5837, 10049, 22001, 37877, 40859, 70343, 286013, 347077, 492401, 2429539, 4512001, 17006773, 31584007, 221088049]

約数ペア:

[(1, 221088049), (7, 31584007), (13, 17006773), (49, 4512001), (91, 2429539), (449, 492401), (637, 347077), (773, 286013), (3143, 70343), (5411, 40859), (5837, 37877), (10049, 22001)]