21938650

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{7193}}^1$

素因数の和:7266

約数の個数: 24

約数和(自身を含む): 41480604

約数和(自身を除く): 19541954

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 305, 610, 1525, 3050, 7193, 14386, 35965, 71930, 179825, 359650, 438773, 877546, 2193865, 4387730, 10969325, 21938650]

約数ペア:

[(1, 21938650), (2, 10969325), (5, 4387730), (10, 2193865), (25, 877546), (50, 438773), (61, 359650), (122, 179825), (305, 71930), (610, 35965), (1525, 14386), (3050, 7193)]