21394760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28151}}^1$

素因数の和:28181

約数の個数: 32

約数和(自身を含む): 50673600

約数和(自身を除く): 29278840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28151, 56302, 112604, 140755, 225208, 281510, 534869, 563020, 1069738, 1126040, 2139476, 2674345, 4278952, 5348690, 10697380, 21394760]

約数ペア:

[(1, 21394760), (2, 10697380), (4, 5348690), (5, 4278952), (8, 2674345), (10, 2139476), (19, 1126040), (20, 1069738), (38, 563020), (40, 534869), (76, 281510), (95, 225208), (152, 140755), (190, 112604), (380, 56302), (760, 28151)]