21734320

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1033}}^1$

素因数の和:1309

約数の個数: 40

約数和(自身を含む): 50773536

約数和(自身を除く): 29039216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1033, 1052, 1315, 2066, 2104, 2630, 4132, 4208, 5165, 5260, 8264, 10330, 10520, 16528, 20660, 21040, 41320, 82640, 271679, 543358, 1086716, 1358395, 2173432, 2716790, 4346864, 5433580, 10867160, 21734320]

約数ペア:

[(1, 21734320), (2, 10867160), (4, 5433580), (5, 4346864), (8, 2716790), (10, 2173432), (16, 1358395), (20, 1086716), (40, 543358), (80, 271679), (263, 82640), (526, 41320), (1033, 21040), (1052, 20660), (1315, 16528), (2066, 10520), (2104, 10330), (2630, 8264), (4132, 5260), (4208, 5165)]