20525379

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:851

約数の個数: 32

約数和(自身を含む): 33116160

約数和(自身を除く): 12590781

約数列:

[1, 3, 7, 21, 31, 41, 93, 123, 217, 287, 651, 769, 861, 1271, 2307, 3813, 5383, 8897, 16149, 23839, 26691, 31529, 71517, 94587, 166873, 220703, 500619, 662109, 977399, 2932197, 6841793, 20525379]

約数ペア:

[(1, 20525379), (3, 6841793), (7, 2932197), (21, 977399), (31, 662109), (41, 500619), (93, 220703), (123, 166873), (217, 94587), (287, 71517), (651, 31529), (769, 26691), (861, 23839), (1271, 16149), (2307, 8897), (3813, 5383)]