21253419

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11299}}^1$

素因数の和:11335

約数の個数: 24

約数和(自身を含む): 35256000

約数和(自身を除く): 14002581

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 11299, 33897, 101691, 124289, 214681, 372867, 644043, 1118601, 1932129, 2361491, 7084473, 21253419]

約数ペア:

[(1, 21253419), (3, 7084473), (9, 2361491), (11, 1932129), (19, 1118601), (33, 644043), (57, 372867), (99, 214681), (171, 124289), (209, 101691), (627, 33897), (1881, 11299)]