20939930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4643}}^1$

素因数の和:4702

約数の個数: 32

約数和(自身を含む): 42130368

約数和(自身を除く): 21190438

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 4510, 4643, 9286, 23215, 46430, 51073, 102146, 190363, 255365, 380726, 510730, 951815, 1903630, 2093993, 4187986, 10469965, 20939930]

約数ペア:

[(1, 20939930), (2, 10469965), (5, 4187986), (10, 2093993), (11, 1903630), (22, 951815), (41, 510730), (55, 380726), (82, 255365), (110, 190363), (205, 102146), (410, 51073), (451, 46430), (902, 23215), (2255, 9286), (4510, 4643)]