20457603

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 40

約数和(自身を含む): 32524800

約数和(自身を除く): 12067197

約数列:

[1, 3, 9, 23, 27, 69, 79, 81, 139, 207, 237, 417, 621, 711, 1251, 1817, 1863, 2133, 3197, 3753, 5451, 6399, 9591, 10981, 11259, 16353, 28773, 32943, 49059, 86319, 98829, 147177, 252563, 258957, 296487, 757689, 889461, 2273067, 6819201, 20457603]

約数ペア:

[(1, 20457603), (3, 6819201), (9, 2273067), (23, 889461), (27, 757689), (69, 296487), (79, 258957), (81, 252563), (139, 147177), (207, 98829), (237, 86319), (417, 49059), (621, 32943), (711, 28773), (1251, 16353), (1817, 11259), (1863, 10981), (2133, 9591), (3197, 6399), (3753, 5451)]