21644300

素因数分解:

$2^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{2143}}^1$

素因数の和:2258

約数の個数: 36

約数和(自身を含む): 47455296

約数和(自身を除く): 25810996

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 202, 404, 505, 1010, 2020, 2143, 2525, 4286, 5050, 8572, 10100, 10715, 21430, 42860, 53575, 107150, 214300, 216443, 432886, 865772, 1082215, 2164430, 4328860, 5411075, 10822150, 21644300]

約数ペア:

[(1, 21644300), (2, 10822150), (4, 5411075), (5, 4328860), (10, 2164430), (20, 1082215), (25, 865772), (50, 432886), (100, 216443), (101, 214300), (202, 107150), (404, 53575), (505, 42860), (1010, 21430), (2020, 10715), (2143, 10100), (2525, 8572), (4286, 5050)]