81587884

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{21269}}^1$

素因数の和:21417

約数の個数: 24

約数和(自身を含む): 164374560

約数和(自身を除く): 82786676

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 548, 959, 1918, 3836, 21269, 42538, 85076, 148883, 297766, 595532, 2913853, 5827706, 11655412, 20396971, 40793942, 81587884]

約数ペア:

[(1, 81587884), (2, 40793942), (4, 20396971), (7, 11655412), (14, 5827706), (28, 2913853), (137, 595532), (274, 297766), (548, 148883), (959, 85076), (1918, 42538), (3836, 21269)]