21266820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39383}}^1$

素因数の和:39401

約数の個数: 48

約数和(自身を含む): 66165120

約数和(自身を除く): 44898300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39383, 78766, 118149, 157532, 196915, 236298, 354447, 393830, 472596, 590745, 708894, 787660, 1063341, 1181490, 1417788, 1772235, 2126682, 2362980, 3544470, 4253364, 5316705, 7088940, 10633410, 21266820]

約数ペア:

[(1, 21266820), (2, 10633410), (3, 7088940), (4, 5316705), (5, 4253364), (6, 3544470), (9, 2362980), (10, 2126682), (12, 1772235), (15, 1417788), (18, 1181490), (20, 1063341), (27, 787660), (30, 708894), (36, 590745), (45, 472596), (54, 393830), (60, 354447), (90, 236298), (108, 196915), (135, 157532), (180, 118149), (270, 78766), (540, 39383)]