21386500

素因数分解:

$2^2\times 5^3\times {\mathrm{42773}}^1$

素因数の和:42792

約数の個数: 24

約数和(自身を含む): 46709208

約数和(自身を除く): 25322708

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 42773, 85546, 171092, 213865, 427730, 855460, 1069325, 2138650, 4277300, 5346625, 10693250, 21386500]

約数ペア:

[(1, 21386500), (2, 10693250), (4, 5346625), (5, 4277300), (10, 2138650), (20, 1069325), (25, 855460), (50, 427730), (100, 213865), (125, 171092), (250, 85546), (500, 42773)]