20717751544

素因数分解:

$2^3\times 7^3\times {\mathrm{19}}^1\times {\mathrm{397379}}^1$

素因数の和:397425

約数の個数: 64

約数和(自身を含む): 47685600000

約数和(自身を除く): 26967848456

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 343, 392, 532, 686, 931, 1064, 1372, 1862, 2744, 3724, 6517, 7448, 13034, 26068, 52136, 397379, 794758, 1589516, 2781653, 3179032, 5563306, 7550201, 11126612, 15100402, 19471571, 22253224, 30200804, 38943142, 52851407, 60401608, 77886284, 105702814, 136300997, 155772568, 211405628, 272601994, 369959849, 422811256, 545203988, 739919698, 1090407976, 1479839396, 2589718943, 2959678792, 5179437886, 10358875772, 20717751544]

約数ペア:

[(1, 20717751544), (2, 10358875772), (4, 5179437886), (7, 2959678792), (8, 2589718943), (14, 1479839396), (19, 1090407976), (28, 739919698), (38, 545203988), (49, 422811256), (56, 369959849), (76, 272601994), (98, 211405628), (133, 155772568), (152, 136300997), (196, 105702814), (266, 77886284), (343, 60401608), (392, 52851407), (532, 38943142), (686, 30200804), (931, 22253224), (1064, 19471571), (1372, 15100402), (1862, 11126612), (2744, 7550201), (3724, 5563306), (6517, 3179032), (7448, 2781653), (13034, 1589516), (26068, 794758), (52136, 397379)]