19868275

素因数分解:

$5^2\times 7^4\times {\mathrm{331}}^1$

素因数の和:369

約数の個数: 30

約数和(自身を含む): 28827892

約数和(自身を除く): 8959617

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 331, 343, 1225, 1655, 1715, 2317, 2401, 8275, 8575, 11585, 12005, 16219, 57925, 60025, 81095, 113533, 405475, 567665, 794731, 2838325, 3973655, 19868275]

約数ペア:

[(1, 19868275), (5, 3973655), (7, 2838325), (25, 794731), (35, 567665), (49, 405475), (175, 113533), (245, 81095), (331, 60025), (343, 57925), (1225, 16219), (1655, 12005), (1715, 11585), (2317, 8575), (2401, 8275)]