21709160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49339}}^1$

素因数の和:49361

約数の個数: 32

約数和(自身を含む): 53287200

約数和(自身を除く): 31578040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49339, 98678, 197356, 246695, 394712, 493390, 542729, 986780, 1085458, 1973560, 2170916, 2713645, 4341832, 5427290, 10854580, 21709160]

約数ペア:

[(1, 21709160), (2, 10854580), (4, 5427290), (5, 4341832), (8, 2713645), (10, 2170916), (11, 1973560), (20, 1085458), (22, 986780), (40, 542729), (44, 493390), (55, 394712), (88, 246695), (110, 197356), (220, 98678), (440, 49339)]