21432760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28201}}^1$

素因数の和:28231

約数の個数: 32

約数和(自身を含む): 50763600

約数和(自身を除く): 29330840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28201, 56402, 112804, 141005, 225608, 282010, 535819, 564020, 1071638, 1128040, 2143276, 2679095, 4286552, 5358190, 10716380, 21432760]

約数ペア:

[(1, 21432760), (2, 10716380), (4, 5358190), (5, 4286552), (8, 2679095), (10, 2143276), (19, 1128040), (20, 1071638), (38, 564020), (40, 535819), (76, 282010), (95, 225608), (152, 141005), (190, 112804), (380, 56402), (760, 28201)]