21502838

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1553}}^1$

素因数の和:1628

約数の個数: 32

約数和(自身を含む): 39384576

約数和(自身を除く): 17881738

約数列:

[1, 2, 7, 14, 23, 43, 46, 86, 161, 301, 322, 602, 989, 1553, 1978, 3106, 6923, 10871, 13846, 21742, 35719, 66779, 71438, 133558, 250033, 467453, 500066, 934906, 1535917, 3071834, 10751419, 21502838]

約数ペア:

[(1, 21502838), (2, 10751419), (7, 3071834), (14, 1535917), (23, 934906), (43, 500066), (46, 467453), (86, 250033), (161, 133558), (301, 71438), (322, 66779), (602, 35719), (989, 21742), (1553, 13846), (1978, 10871), (3106, 6923)]