21007476

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{11909}}^1$

素因数の和:11933

約数の個数: 54

約数和(自身を含む): 61777170

約数和(自身を除く): 40769694

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 11909, 23818, 35727, 47636, 71454, 83363, 107181, 142908, 166726, 214362, 250089, 333452, 428724, 500178, 583541, 750267, 1000356, 1167082, 1500534, 1750623, 2334164, 3001068, 3501246, 5251869, 7002492, 10503738, 21007476]

約数ペア:

[(1, 21007476), (2, 10503738), (3, 7002492), (4, 5251869), (6, 3501246), (7, 3001068), (9, 2334164), (12, 1750623), (14, 1500534), (18, 1167082), (21, 1000356), (28, 750267), (36, 583541), (42, 500178), (49, 428724), (63, 333452), (84, 250089), (98, 214362), (126, 166726), (147, 142908), (196, 107181), (252, 83363), (294, 71454), (441, 47636), (588, 35727), (882, 23818), (1764, 11909)]