21045536

素因数分解:

$2^5\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 43001280

約数和(自身を除く): 21955744

約数列:

[1, 2, 4, 8, 16, 32, 59, 71, 118, 142, 157, 236, 284, 314, 472, 568, 628, 944, 1136, 1256, 1888, 2272, 2512, 4189, 5024, 8378, 9263, 11147, 16756, 18526, 22294, 33512, 37052, 44588, 67024, 74104, 89176, 134048, 148208, 178352, 296416, 356704, 657673, 1315346, 2630692, 5261384, 10522768, 21045536]

約数ペア:

[(1, 21045536), (2, 10522768), (4, 5261384), (8, 2630692), (16, 1315346), (32, 657673), (59, 356704), (71, 296416), (118, 178352), (142, 148208), (157, 134048), (236, 89176), (284, 74104), (314, 67024), (472, 44588), (568, 37052), (628, 33512), (944, 22294), (1136, 18526), (1256, 16756), (1888, 11147), (2272, 9263), (2512, 8378), (4189, 5024)]