21349365

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2887}}^1$

素因数の和:2941

約数の個数: 32

約数和(自身を含む): 37428480

約数和(自身を除く): 16079115

約数列:

[1, 3, 5, 15, 17, 29, 51, 85, 87, 145, 255, 435, 493, 1479, 2465, 2887, 7395, 8661, 14435, 43305, 49079, 83723, 147237, 245395, 251169, 418615, 736185, 1255845, 1423291, 4269873, 7116455, 21349365]

約数ペア:

[(1, 21349365), (3, 7116455), (5, 4269873), (15, 1423291), (17, 1255845), (29, 736185), (51, 418615), (85, 251169), (87, 245395), (145, 147237), (255, 83723), (435, 49079), (493, 43305), (1479, 14435), (2465, 8661), (2887, 7395)]