20437508

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{617}}^1$

素因数の和:661

約数の個数: 54

約数和(自身を含む): 45124506

約数和(自身を除く): 24686998

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 169, 182, 196, 338, 364, 617, 637, 676, 1183, 1234, 1274, 2366, 2468, 2548, 4319, 4732, 8021, 8281, 8638, 16042, 16562, 17276, 30233, 32084, 33124, 56147, 60466, 104273, 112294, 120932, 208546, 224588, 393029, 417092, 729911, 786058, 1459822, 1572116, 2919644, 5109377, 10218754, 20437508]

約数ペア:

[(1, 20437508), (2, 10218754), (4, 5109377), (7, 2919644), (13, 1572116), (14, 1459822), (26, 786058), (28, 729911), (49, 417092), (52, 393029), (91, 224588), (98, 208546), (169, 120932), (182, 112294), (196, 104273), (338, 60466), (364, 56147), (617, 33124), (637, 32084), (676, 30233), (1183, 17276), (1234, 16562), (1274, 16042), (2366, 8638), (2468, 8281), (2548, 8021), (4319, 4732)]