18998210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2243}}^1$

素因数の和:2279

約数の個数: 48

約数和(自身を含む): 42977088

約数和(自身を除く): 23978878

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 154, 242, 385, 605, 770, 847, 1210, 1694, 2243, 4235, 4486, 8470, 11215, 15701, 22430, 24673, 31402, 49346, 78505, 123365, 157010, 172711, 246730, 271403, 345422, 542806, 863555, 1357015, 1727110, 1899821, 2714030, 3799642, 9499105, 18998210]

約数ペア:

[(1, 18998210), (2, 9499105), (5, 3799642), (7, 2714030), (10, 1899821), (11, 1727110), (14, 1357015), (22, 863555), (35, 542806), (55, 345422), (70, 271403), (77, 246730), (110, 172711), (121, 157010), (154, 123365), (242, 78505), (385, 49346), (605, 31402), (770, 24673), (847, 22430), (1210, 15701), (1694, 11215), (2243, 8470), (4235, 4486)]