21447930

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{937}}^1$

素因数の和:1063

約数の個数: 64

約数和(自身を含む): 59431680

約数和(自身を除く): 37983750

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 109, 210, 218, 327, 545, 654, 763, 937, 1090, 1526, 1635, 1874, 2289, 2811, 3270, 3815, 4578, 4685, 5622, 6559, 7630, 9370, 11445, 13118, 14055, 19677, 22890, 28110, 32795, 39354, 65590, 98385, 102133, 196770, 204266, 306399, 510665, 612798, 714931, 1021330, 1429862, 1531995, 2144793, 3063990, 3574655, 4289586, 7149310, 10723965, 21447930]

約数ペア:

[(1, 21447930), (2, 10723965), (3, 7149310), (5, 4289586), (6, 3574655), (7, 3063990), (10, 2144793), (14, 1531995), (15, 1429862), (21, 1021330), (30, 714931), (35, 612798), (42, 510665), (70, 306399), (105, 204266), (109, 196770), (210, 102133), (218, 98385), (327, 65590), (545, 39354), (654, 32795), (763, 28110), (937, 22890), (1090, 19677), (1526, 14055), (1635, 13118), (1874, 11445), (2289, 9370), (2811, 7630), (3270, 6559), (3815, 5622), (4578, 4685)]