20805216327

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2600327}}^1$

素因数の和:2600467

約数の個数: 24

約数和(自身を含む): 34615566336

約数和(自身を除く): 13810350009

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 8001, 2600327, 7800981, 18202289, 23402943, 54606867, 163820601, 330241529, 990724587, 2311690703, 2972173761, 6935072109, 20805216327]

約数ペア:

[(1, 20805216327), (3, 6935072109), (7, 2972173761), (9, 2311690703), (21, 990724587), (63, 330241529), (127, 163820601), (381, 54606867), (889, 23402943), (1143, 18202289), (2667, 7800981), (8001, 2600327)]