21292100

素因数分解:

$2^2\times 5^2\times {\mathrm{149}}^1\times {\mathrm{1429}}^1$

素因数の和:1592

約数の個数: 36

約数和(自身を含む): 46546500

約数和(自身を除く): 25254400

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 149, 298, 596, 745, 1429, 1490, 2858, 2980, 3725, 5716, 7145, 7450, 14290, 14900, 28580, 35725, 71450, 142900, 212921, 425842, 851684, 1064605, 2129210, 4258420, 5323025, 10646050, 21292100]

約数ペア:

[(1, 21292100), (2, 10646050), (4, 5323025), (5, 4258420), (10, 2129210), (20, 1064605), (25, 851684), (50, 425842), (100, 212921), (149, 142900), (298, 71450), (596, 35725), (745, 28580), (1429, 14900), (1490, 14290), (2858, 7450), (2980, 7145), (3725, 5716)]