21529684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{269}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 44089920

約数和(自身を除く): 22560236

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 107, 187, 214, 269, 374, 428, 538, 748, 1076, 1177, 1819, 2354, 2959, 3638, 4573, 4708, 5918, 7276, 9146, 11836, 18292, 20009, 28783, 40018, 50303, 57566, 80036, 100606, 115132, 201212, 316613, 489311, 633226, 978622, 1266452, 1957244, 5382421, 10764842, 21529684]

約数ペア:

[(1, 21529684), (2, 10764842), (4, 5382421), (11, 1957244), (17, 1266452), (22, 978622), (34, 633226), (44, 489311), (68, 316613), (107, 201212), (187, 115132), (214, 100606), (269, 80036), (374, 57566), (428, 50303), (538, 40018), (748, 28783), (1076, 20009), (1177, 18292), (1819, 11836), (2354, 9146), (2959, 7276), (3638, 5918), (4573, 4708)]