20727876

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 55883520

約数和(自身を除く): 35155644

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 53, 69, 78, 92, 106, 109, 138, 156, 159, 212, 218, 276, 299, 318, 327, 436, 598, 636, 654, 689, 897, 1196, 1219, 1308, 1378, 1417, 1794, 2067, 2438, 2507, 2756, 2834, 3588, 3657, 4134, 4251, 4876, 5014, 5668, 5777, 7314, 7521, 8268, 8502, 10028, 11554, 14628, 15042, 15847, 17004, 17331, 23108, 30084, 31694, 32591, 34662, 47541, 63388, 65182, 69324, 75101, 95082, 97773, 130364, 132871, 150202, 190164, 195546, 225303, 265742, 300404, 391092, 398613, 450606, 531484, 797226, 901212, 1594452, 1727323, 3454646, 5181969, 6909292, 10363938, 20727876]

約数ペア:

[(1, 20727876), (2, 10363938), (3, 6909292), (4, 5181969), (6, 3454646), (12, 1727323), (13, 1594452), (23, 901212), (26, 797226), (39, 531484), (46, 450606), (52, 398613), (53, 391092), (69, 300404), (78, 265742), (92, 225303), (106, 195546), (109, 190164), (138, 150202), (156, 132871), (159, 130364), (212, 97773), (218, 95082), (276, 75101), (299, 69324), (318, 65182), (327, 63388), (436, 47541), (598, 34662), (636, 32591), (654, 31694), (689, 30084), (897, 23108), (1196, 17331), (1219, 17004), (1308, 15847), (1378, 15042), (1417, 14628), (1794, 11554), (2067, 10028), (2438, 8502), (2507, 8268), (2756, 7521), (2834, 7314), (3588, 5777), (3657, 5668), (4134, 5014), (4251, 4876)]