21384800

素因数分解:

$2^5\times 5^2\times {\mathrm{26731}}^1$

素因数の和:26751

約数の個数: 36

約数和(自身を含む): 52207596

約数和(自身を除く): 30822796

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26731, 53462, 106924, 133655, 213848, 267310, 427696, 534620, 668275, 855392, 1069240, 1336550, 2138480, 2673100, 4276960, 5346200, 10692400, 21384800]

約数ペア:

[(1, 21384800), (2, 10692400), (4, 5346200), (5, 4276960), (8, 2673100), (10, 2138480), (16, 1336550), (20, 1069240), (25, 855392), (32, 668275), (40, 534620), (50, 427696), (80, 267310), (100, 213848), (160, 133655), (200, 106924), (400, 53462), (800, 26731)]