20503756

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{619}}^1$

素因数の和:663

約数の個数: 54

約数和(自身を含む): 45270540

約数和(自身を除く): 24766784

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 169, 182, 196, 338, 364, 619, 637, 676, 1183, 1238, 1274, 2366, 2476, 2548, 4333, 4732, 8047, 8281, 8666, 16094, 16562, 17332, 30331, 32188, 33124, 56329, 60662, 104611, 112658, 121324, 209222, 225316, 394303, 418444, 732277, 788606, 1464554, 1577212, 2929108, 5125939, 10251878, 20503756]

約数ペア:

[(1, 20503756), (2, 10251878), (4, 5125939), (7, 2929108), (13, 1577212), (14, 1464554), (26, 788606), (28, 732277), (49, 418444), (52, 394303), (91, 225316), (98, 209222), (169, 121324), (182, 112658), (196, 104611), (338, 60662), (364, 56329), (619, 33124), (637, 32188), (676, 30331), (1183, 17332), (1238, 16562), (1274, 16094), (2366, 8666), (2476, 8281), (2548, 8047), (4333, 4732)]