21210519

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{1619}}^1$

素因数の和:2030

約数の個数: 16

約数和(自身を含む): 30948480

約数和(自身を除く): 9737961

約数列:

[1, 3, 11, 33, 397, 1191, 1619, 4367, 4857, 13101, 17809, 53427, 642743, 1928229, 7070173, 21210519]

約数ペア:

[(1, 21210519), (3, 7070173), (11, 1928229), (33, 642743), (397, 53427), (1191, 17809), (1619, 13101), (4367, 4857)]