21376016

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2003}}^1$

素因数の和:2063

約数の個数: 40

約数和(自身を含む): 44729280

約数和(自身を除く): 23353264

約数列:

[1, 2, 4, 8, 16, 23, 29, 46, 58, 92, 116, 184, 232, 368, 464, 667, 1334, 2003, 2668, 4006, 5336, 8012, 10672, 16024, 32048, 46069, 58087, 92138, 116174, 184276, 232348, 368552, 464696, 737104, 929392, 1336001, 2672002, 5344004, 10688008, 21376016]

約数ペア:

[(1, 21376016), (2, 10688008), (4, 5344004), (8, 2672002), (16, 1336001), (23, 929392), (29, 737104), (46, 464696), (58, 368552), (92, 232348), (116, 184276), (184, 116174), (232, 92138), (368, 58087), (464, 46069), (667, 32048), (1334, 16024), (2003, 10672), (2668, 8012), (4006, 5336)]