21263024

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{263}}^1$

素因数の和:465

約数の個数: 40

約数和(自身を含む): 42949632

約数和(自身を除く): 21686608

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 163, 248, 263, 326, 496, 526, 652, 1052, 1304, 2104, 2608, 4208, 5053, 8153, 10106, 16306, 20212, 32612, 40424, 42869, 65224, 80848, 85738, 130448, 171476, 342952, 685904, 1328939, 2657878, 5315756, 10631512, 21263024]

約数ペア:

[(1, 21263024), (2, 10631512), (4, 5315756), (8, 2657878), (16, 1328939), (31, 685904), (62, 342952), (124, 171476), (163, 130448), (248, 85738), (263, 80848), (326, 65224), (496, 42869), (526, 40424), (652, 32612), (1052, 20212), (1304, 16306), (2104, 10106), (2608, 8153), (4208, 5053)]