20150221

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{4519}}^1$

素因数の和:4553

約数の個数: 16

約数和(自身を含む): 25312000

約数和(自身を除く): 5161779

約数列:

[1, 7, 13, 49, 91, 343, 637, 4459, 4519, 31633, 58747, 221431, 411229, 1550017, 2878603, 20150221]

約数ペア:

[(1, 20150221), (7, 2878603), (13, 1550017), (49, 411229), (91, 221431), (343, 58747), (637, 31633), (4459, 4519)]