18325328

素因数分解:

$2^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1249}}^1$

素因数の和:1395

約数の個数: 40

約数和(自身を含む): 40920000

約数和(自身を除く): 22594672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 131, 262, 524, 917, 1048, 1249, 1834, 2096, 2498, 3668, 4996, 7336, 8743, 9992, 14672, 17486, 19984, 34972, 69944, 139888, 163619, 327238, 654476, 1145333, 1308952, 2290666, 2617904, 4581332, 9162664, 18325328]

約数ペア:

[(1, 18325328), (2, 9162664), (4, 4581332), (7, 2617904), (8, 2290666), (14, 1308952), (16, 1145333), (28, 654476), (56, 327238), (112, 163619), (131, 139888), (262, 69944), (524, 34972), (917, 19984), (1048, 17486), (1249, 14672), (1834, 9992), (2096, 8743), (2498, 7336), (3668, 4996)]