18139528

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{571}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 39227760

約数和(自身を除く): 21088232

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 361, 418, 571, 722, 836, 1142, 1444, 1672, 2284, 2888, 3971, 4568, 6281, 7942, 10849, 12562, 15884, 21698, 25124, 31768, 43396, 50248, 86792, 119339, 206131, 238678, 412262, 477356, 824524, 954712, 1649048, 2267441, 4534882, 9069764, 18139528]

約数ペア:

[(1, 18139528), (2, 9069764), (4, 4534882), (8, 2267441), (11, 1649048), (19, 954712), (22, 824524), (38, 477356), (44, 412262), (76, 238678), (88, 206131), (152, 119339), (209, 86792), (361, 50248), (418, 43396), (571, 31768), (722, 25124), (836, 21698), (1142, 15884), (1444, 12562), (1672, 10849), (2284, 7942), (2888, 6281), (3971, 4568)]