20525296

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{839}}^1$

素因数の和:997

約数の個数: 40

約数和(自身を含む): 43747200

約数和(自身を除く): 23221904

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 139, 176, 278, 556, 839, 1112, 1529, 1678, 2224, 3058, 3356, 6116, 6712, 9229, 12232, 13424, 18458, 24464, 36916, 73832, 116621, 147664, 233242, 466484, 932968, 1282831, 1865936, 2565662, 5131324, 10262648, 20525296]

約数ペア:

[(1, 20525296), (2, 10262648), (4, 5131324), (8, 2565662), (11, 1865936), (16, 1282831), (22, 932968), (44, 466484), (88, 233242), (139, 147664), (176, 116621), (278, 73832), (556, 36916), (839, 24464), (1112, 18458), (1529, 13424), (1678, 12232), (2224, 9229), (3058, 6712), (3356, 6116)]