20998530

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{33331}}^1$

素因数の和:33351

約数の個数: 48

約数和(自身を含む): 62397504

約数和(自身を除く): 41398974

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 33331, 66662, 99993, 166655, 199986, 233317, 299979, 333310, 466634, 499965, 599958, 699951, 999930, 1166585, 1399902, 1499895, 2099853, 2333170, 2999790, 3499755, 4199706, 6999510, 10499265, 20998530]

約数ペア:

[(1, 20998530), (2, 10499265), (3, 6999510), (5, 4199706), (6, 3499755), (7, 2999790), (9, 2333170), (10, 2099853), (14, 1499895), (15, 1399902), (18, 1166585), (21, 999930), (30, 699951), (35, 599958), (42, 499965), (45, 466634), (63, 333310), (70, 299979), (90, 233317), (105, 199986), (126, 166655), (210, 99993), (315, 66662), (630, 33331)]