21396284

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1367}}^1$

素因数の和:1434

約数の個数: 48

約数和(自身を含む): 47190528

約数和(自身を除く): 25794244

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 52, 86, 91, 172, 182, 301, 364, 559, 602, 1118, 1204, 1367, 2236, 2734, 3913, 5468, 7826, 9569, 15652, 17771, 19138, 35542, 38276, 58781, 71084, 117562, 124397, 235124, 248794, 411467, 497588, 764153, 822934, 1528306, 1645868, 3056612, 5349071, 10698142, 21396284]

約数ペア:

[(1, 21396284), (2, 10698142), (4, 5349071), (7, 3056612), (13, 1645868), (14, 1528306), (26, 822934), (28, 764153), (43, 497588), (52, 411467), (86, 248794), (91, 235124), (172, 124397), (182, 117562), (301, 71084), (364, 58781), (559, 38276), (602, 35542), (1118, 19138), (1204, 17771), (1367, 15652), (2236, 9569), (2734, 7826), (3913, 5468)]