2021157908

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{345379}}^1$

素因数の和:345420

約数の個数: 48

約数和(自身を含む): 4641907200

約数和(自身を除く): 2620749292

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 76, 77, 133, 154, 209, 266, 308, 418, 532, 836, 1463, 2926, 5852, 345379, 690758, 1381516, 2417653, 3799169, 4835306, 6562201, 7598338, 9670612, 13124402, 15196676, 26248804, 26594183, 45935407, 53188366, 72184211, 91870814, 106376732, 144368422, 183741628, 288736844, 505289477, 1010578954, 2021157908]

約数ペア:

[(1, 2021157908), (2, 1010578954), (4, 505289477), (7, 288736844), (11, 183741628), (14, 144368422), (19, 106376732), (22, 91870814), (28, 72184211), (38, 53188366), (44, 45935407), (76, 26594183), (77, 26248804), (133, 15196676), (154, 13124402), (209, 9670612), (266, 7598338), (308, 6562201), (418, 4835306), (532, 3799169), (836, 2417653), (1463, 1381516), (2926, 690758), (5852, 345379)]