18337904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{673}}^1$

素因数の和:825

約数の個数: 40

約数和(自身を含む): 38612112

約数和(自身を除く): 20274208

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 131, 208, 262, 524, 673, 1048, 1346, 1703, 2096, 2692, 3406, 5384, 6812, 8749, 10768, 13624, 17498, 27248, 34996, 69992, 88163, 139984, 176326, 352652, 705304, 1146119, 1410608, 2292238, 4584476, 9168952, 18337904]

約数ペア:

[(1, 18337904), (2, 9168952), (4, 4584476), (8, 2292238), (13, 1410608), (16, 1146119), (26, 705304), (52, 352652), (104, 176326), (131, 139984), (208, 88163), (262, 69992), (524, 34996), (673, 27248), (1048, 17498), (1346, 13624), (1703, 10768), (2096, 8749), (2692, 6812), (3406, 5384)]