21671120

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9341}}^1$

素因数の和:9383

約数の個数: 40

約数和(自身を含む): 52128360

約数和(自身を除く): 30457240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9341, 18682, 37364, 46705, 74728, 93410, 149456, 186820, 270889, 373640, 541778, 747280, 1083556, 1354445, 2167112, 2708890, 4334224, 5417780, 10835560, 21671120]

約数ペア:

[(1, 21671120), (2, 10835560), (4, 5417780), (5, 4334224), (8, 2708890), (10, 2167112), (16, 1354445), (20, 1083556), (29, 747280), (40, 541778), (58, 373640), (80, 270889), (116, 186820), (145, 149456), (232, 93410), (290, 74728), (464, 46705), (580, 37364), (1160, 18682), (2320, 9341)]