21780537

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{3169}}^1$

素因数の和:3280

約数の個数: 16

約数和(自身を含む): 30432000

約数和(自身を除く): 8651463

約数列:

[1, 3, 29, 79, 87, 237, 2291, 3169, 6873, 9507, 91901, 250351, 275703, 751053, 7260179, 21780537]

約数ペア:

[(1, 21780537), (3, 7260179), (29, 751053), (79, 275703), (87, 250351), (237, 91901), (2291, 9507), (3169, 6873)]