19949904

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{10657}}^1$

素因数の和:10684

約数の個数: 60

約数和(自身を含む): 60132436

約数和(自身を除く): 40182532

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 10657, 21314, 31971, 42628, 63942, 85256, 95913, 127884, 138541, 170512, 191826, 255768, 277082, 383652, 415623, 511536, 554164, 767304, 831246, 1108328, 1246869, 1534608, 1662492, 2216656, 2493738, 3324984, 4987476, 6649968, 9974952, 19949904]

約数ペア:

[(1, 19949904), (2, 9974952), (3, 6649968), (4, 4987476), (6, 3324984), (8, 2493738), (9, 2216656), (12, 1662492), (13, 1534608), (16, 1246869), (18, 1108328), (24, 831246), (26, 767304), (36, 554164), (39, 511536), (48, 415623), (52, 383652), (72, 277082), (78, 255768), (104, 191826), (117, 170512), (144, 138541), (156, 127884), (208, 95913), (234, 85256), (312, 63942), (468, 42628), (624, 31971), (936, 21314), (1872, 10657)]