20839416

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3929}}^1$

素因数の和:3968

約数の個数: 64

約数和(自身を含む): 59421600

約数和(自身を除く): 38582184

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 136, 156, 204, 221, 312, 408, 442, 663, 884, 1326, 1768, 2652, 3929, 5304, 7858, 11787, 15716, 23574, 31432, 47148, 51077, 66793, 94296, 102154, 133586, 153231, 200379, 204308, 267172, 306462, 400758, 408616, 534344, 612924, 801516, 868309, 1225848, 1603032, 1736618, 2604927, 3473236, 5209854, 6946472, 10419708, 20839416]

約数ペア:

[(1, 20839416), (2, 10419708), (3, 6946472), (4, 5209854), (6, 3473236), (8, 2604927), (12, 1736618), (13, 1603032), (17, 1225848), (24, 868309), (26, 801516), (34, 612924), (39, 534344), (51, 408616), (52, 400758), (68, 306462), (78, 267172), (102, 204308), (104, 200379), (136, 153231), (156, 133586), (204, 102154), (221, 94296), (312, 66793), (408, 51077), (442, 47148), (663, 31432), (884, 23574), (1326, 15716), (1768, 11787), (2652, 7858), (3929, 5304)]