388213384

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{21577}}^1$

素因数の和:21769

約数の個数: 32

約数和(自身を含む): 788460120

約数和(自身を除く): 400246736

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 173, 346, 692, 1384, 2249, 4498, 8996, 17992, 21577, 43154, 86308, 172616, 280501, 561002, 1122004, 2244008, 3732821, 7465642, 14931284, 29862568, 48526673, 97053346, 194106692, 388213384]

約数ペア:

[(1, 388213384), (2, 194106692), (4, 97053346), (8, 48526673), (13, 29862568), (26, 14931284), (52, 7465642), (104, 3732821), (173, 2244008), (346, 1122004), (692, 561002), (1384, 280501), (2249, 172616), (4498, 86308), (8996, 43154), (17992, 21577)]