20202021

素因数分解:

$3^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1201}}^1$

素因数の和:1306

約数の個数: 32

約数和(自身を含む): 34617600

約数和(自身を除く): 14415579

約数列:

[1, 3, 7, 9, 21, 27, 63, 89, 189, 267, 623, 801, 1201, 1869, 2403, 3603, 5607, 8407, 10809, 16821, 25221, 32427, 75663, 106889, 226989, 320667, 748223, 962001, 2244669, 2886003, 6734007, 20202021]

約数ペア:

[(1, 20202021), (3, 6734007), (7, 2886003), (9, 2244669), (21, 962001), (27, 748223), (63, 320667), (89, 226989), (189, 106889), (267, 75663), (623, 32427), (801, 25221), (1201, 16821), (1869, 10809), (2403, 8407), (3603, 5607)]