20787768

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{12553}}^1$

素因数の和:12588

約数の個数: 48

約数和(自身を含む): 58752720

約数和(自身を除く): 37964952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 46, 69, 72, 92, 138, 184, 207, 276, 414, 552, 828, 1656, 12553, 25106, 37659, 50212, 75318, 100424, 112977, 150636, 225954, 288719, 301272, 451908, 577438, 866157, 903816, 1154876, 1732314, 2309752, 2598471, 3464628, 5196942, 6929256, 10393884, 20787768]

約数ペア:

[(1, 20787768), (2, 10393884), (3, 6929256), (4, 5196942), (6, 3464628), (8, 2598471), (9, 2309752), (12, 1732314), (18, 1154876), (23, 903816), (24, 866157), (36, 577438), (46, 451908), (69, 301272), (72, 288719), (92, 225954), (138, 150636), (184, 112977), (207, 100424), (276, 75318), (414, 50212), (552, 37659), (828, 25106), (1656, 12553)]