21797566

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:424

約数の個数: 32

約数和(自身を含む): 38587392

約数和(自身を除く): 16789826

約数列:

[1, 2, 7, 14, 47, 94, 157, 211, 314, 329, 422, 658, 1099, 1477, 2198, 2954, 7379, 9917, 14758, 19834, 33127, 51653, 66254, 69419, 103306, 138838, 231889, 463778, 1556969, 3113938, 10898783, 21797566]

約数ペア:

[(1, 21797566), (2, 10898783), (7, 3113938), (14, 1556969), (47, 463778), (94, 231889), (157, 138838), (211, 103306), (314, 69419), (329, 66254), (422, 51653), (658, 33127), (1099, 19834), (1477, 14758), (2198, 9917), (2954, 7379)]