87896109

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{220291}}^1$

素因数の和:220320

約数の個数: 16

約数和(自身を含む): 140986880

約数和(自身を除く): 53090771

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 220291, 660873, 1542037, 4185529, 4626111, 12556587, 29298703, 87896109]

約数ペア:

[(1, 87896109), (3, 29298703), (7, 12556587), (19, 4626111), (21, 4185529), (57, 1542037), (133, 660873), (399, 220291)]