18163888

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1553}}^1$

素因数の和:1621

約数の個数: 40

約数和(自身を含む): 38153808

約数和(自身を除く): 19989920

約数列:

[1, 2, 4, 8, 16, 17, 34, 43, 68, 86, 136, 172, 272, 344, 688, 731, 1462, 1553, 2924, 3106, 5848, 6212, 11696, 12424, 24848, 26401, 52802, 66779, 105604, 133558, 211208, 267116, 422416, 534232, 1068464, 1135243, 2270486, 4540972, 9081944, 18163888]

約数ペア:

[(1, 18163888), (2, 9081944), (4, 4540972), (8, 2270486), (16, 1135243), (17, 1068464), (34, 534232), (43, 422416), (68, 267116), (86, 211208), (136, 133558), (172, 105604), (272, 66779), (344, 52802), (688, 26401), (731, 24848), (1462, 12424), (1553, 11696), (2924, 6212), (3106, 5848)]