21016960

素因数分解:

$2^7\times 5^1\times {\mathrm{32839}}^1$

素因数の和:32858

約数の個数: 32

約数和(自身を含む): 50245200

約数和(自身を除く): 29228240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32839, 65678, 131356, 164195, 262712, 328390, 525424, 656780, 1050848, 1313560, 2101696, 2627120, 4203392, 5254240, 10508480, 21016960]

約数ペア:

[(1, 21016960), (2, 10508480), (4, 5254240), (5, 4203392), (8, 2627120), (10, 2101696), (16, 1313560), (20, 1050848), (32, 656780), (40, 525424), (64, 328390), (80, 262712), (128, 164195), (160, 131356), (320, 65678), (640, 32839)]