21901712

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11503}}^1$

素因数の和:11535

約数の個数: 40

約数和(自身を含む): 51353856

約数和(自身を除く): 29452144

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 11503, 23006, 46012, 80521, 92024, 161042, 184048, 195551, 322084, 391102, 644168, 782204, 1288336, 1368857, 1564408, 2737714, 3128816, 5475428, 10950856, 21901712]

約数ペア:

[(1, 21901712), (2, 10950856), (4, 5475428), (7, 3128816), (8, 2737714), (14, 1564408), (16, 1368857), (17, 1288336), (28, 782204), (34, 644168), (56, 391102), (68, 322084), (112, 195551), (119, 184048), (136, 161042), (238, 92024), (272, 80521), (476, 46012), (952, 23006), (1904, 11503)]