20538612

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:333

約数の個数: 72

約数和(自身を含む): 54512640

約数和(自身を除く): 33974028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 103, 116, 174, 191, 206, 261, 309, 348, 382, 412, 522, 573, 618, 764, 927, 1044, 1146, 1236, 1719, 1854, 2292, 2987, 3438, 3708, 5539, 5974, 6876, 8961, 11078, 11948, 16617, 17922, 19673, 22156, 26883, 33234, 35844, 39346, 49851, 53766, 59019, 66468, 78692, 99702, 107532, 118038, 177057, 199404, 236076, 354114, 570517, 708228, 1141034, 1711551, 2282068, 3423102, 5134653, 6846204, 10269306, 20538612]

約数ペア:

[(1, 20538612), (2, 10269306), (3, 6846204), (4, 5134653), (6, 3423102), (9, 2282068), (12, 1711551), (18, 1141034), (29, 708228), (36, 570517), (58, 354114), (87, 236076), (103, 199404), (116, 177057), (174, 118038), (191, 107532), (206, 99702), (261, 78692), (309, 66468), (348, 59019), (382, 53766), (412, 49851), (522, 39346), (573, 35844), (618, 33234), (764, 26883), (927, 22156), (1044, 19673), (1146, 17922), (1236, 16617), (1719, 11948), (1854, 11078), (2292, 8961), (2987, 6876), (3438, 5974), (3708, 5539)]