21202504

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{829}}^1$

素因数の和:997

約数の個数: 32

約数和(自身を含む): 41832000

約数和(自身を除く): 20629496

約数列:

[1, 2, 4, 8, 23, 46, 92, 139, 184, 278, 556, 829, 1112, 1658, 3197, 3316, 6394, 6632, 12788, 19067, 25576, 38134, 76268, 115231, 152536, 230462, 460924, 921848, 2650313, 5300626, 10601252, 21202504]

約数ペア:

[(1, 21202504), (2, 10601252), (4, 5300626), (8, 2650313), (23, 921848), (46, 460924), (92, 230462), (139, 152536), (184, 115231), (278, 76268), (556, 38134), (829, 25576), (1112, 19067), (1658, 12788), (3197, 6632), (3316, 6394)]