17939896

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 39160800

約数和(自身を除く): 21220904

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 73, 104, 136, 139, 146, 221, 278, 292, 442, 556, 584, 884, 949, 1112, 1241, 1768, 1807, 1898, 2363, 2482, 3614, 3796, 4726, 4964, 7228, 7592, 9452, 9928, 10147, 14456, 16133, 18904, 20294, 30719, 32266, 40588, 61438, 64532, 81176, 122876, 129064, 131911, 172499, 245752, 263822, 344998, 527644, 689996, 1055288, 1379992, 2242487, 4484974, 8969948, 17939896]

約数ペア:

[(1, 17939896), (2, 8969948), (4, 4484974), (8, 2242487), (13, 1379992), (17, 1055288), (26, 689996), (34, 527644), (52, 344998), (68, 263822), (73, 245752), (104, 172499), (136, 131911), (139, 129064), (146, 122876), (221, 81176), (278, 64532), (292, 61438), (442, 40588), (556, 32266), (584, 30719), (884, 20294), (949, 18904), (1112, 16133), (1241, 14456), (1768, 10147), (1807, 9928), (1898, 9452), (2363, 7592), (2482, 7228), (3614, 4964), (3796, 4726)]