20976708

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{107}}^1$

素因数の和:193

約数の個数: 72

約数和(自身を含む): 54050976

約数和(自身を除く): 33074268

約数列:

[1, 2, 3, 4, 6, 12, 17, 31, 34, 51, 62, 68, 93, 102, 107, 124, 186, 204, 214, 321, 372, 428, 527, 642, 961, 1054, 1284, 1581, 1819, 1922, 2108, 2883, 3162, 3317, 3638, 3844, 5457, 5766, 6324, 6634, 7276, 9951, 10914, 11532, 13268, 16337, 19902, 21828, 32674, 39804, 49011, 56389, 65348, 98022, 102827, 112778, 169167, 196044, 205654, 225556, 308481, 338334, 411308, 616962, 676668, 1233924, 1748059, 3496118, 5244177, 6992236, 10488354, 20976708]

約数ペア:

[(1, 20976708), (2, 10488354), (3, 6992236), (4, 5244177), (6, 3496118), (12, 1748059), (17, 1233924), (31, 676668), (34, 616962), (51, 411308), (62, 338334), (68, 308481), (93, 225556), (102, 205654), (107, 196044), (124, 169167), (186, 112778), (204, 102827), (214, 98022), (321, 65348), (372, 56389), (428, 49011), (527, 39804), (642, 32674), (961, 21828), (1054, 19902), (1284, 16337), (1581, 13268), (1819, 11532), (1922, 10914), (2108, 9951), (2883, 7276), (3162, 6634), (3317, 6324), (3638, 5766), (3844, 5457)]