21387356

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{167}}^1\times {\mathrm{317}}^1$

素因数の和:589

約数の個数: 24

約数和(自身を含む): 38144736

約数和(自身を除く): 16757380

約数列:

[1, 2, 4, 101, 167, 202, 317, 334, 404, 634, 668, 1268, 16867, 32017, 33734, 52939, 64034, 67468, 105878, 128068, 211756, 5346839, 10693678, 21387356]

約数ペア:

[(1, 21387356), (2, 10693678), (4, 5346839), (101, 211756), (167, 128068), (202, 105878), (317, 67468), (334, 64034), (404, 52939), (634, 33734), (668, 32017), (1268, 16867)]