21653300

素因数分解:

$2^2\times 5^2\times {\mathrm{223}}^1\times {\mathrm{971}}^1$

素因数の和:1208

約数の個数: 36

約数和(自身を含む): 47246976

約数和(自身を除く): 25593676

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 223, 446, 892, 971, 1115, 1942, 2230, 3884, 4460, 4855, 5575, 9710, 11150, 19420, 22300, 24275, 48550, 97100, 216533, 433066, 866132, 1082665, 2165330, 4330660, 5413325, 10826650, 21653300]

約数ペア:

[(1, 21653300), (2, 10826650), (4, 5413325), (5, 4330660), (10, 2165330), (20, 1082665), (25, 866132), (50, 433066), (100, 216533), (223, 97100), (446, 48550), (892, 24275), (971, 22300), (1115, 19420), (1942, 11150), (2230, 9710), (3884, 5575), (4460, 4855)]