20518532518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{643}}^1\times {\mathrm{21649}}^1$

素因数の和:22372

約数の個数: 32

約数和(自身を含む): 34131484800

約数和(自身を除く): 13612952282

約数列:

[1, 2, 11, 22, 67, 134, 643, 737, 1286, 1474, 7073, 14146, 21649, 43081, 43298, 86162, 238139, 473891, 476278, 947782, 1450483, 2900966, 13920307, 15955313, 27840614, 31910626, 153123377, 306246754, 932660569, 1865321138, 10259266259, 20518532518]

約数ペア:

[(1, 20518532518), (2, 10259266259), (11, 1865321138), (22, 932660569), (67, 306246754), (134, 153123377), (643, 31910626), (737, 27840614), (1286, 15955313), (1474, 13920307), (7073, 2900966), (14146, 1450483), (21649, 947782), (43081, 476278), (43298, 473891), (86162, 238139)]