18297968

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:202

約数の個数: 60

約数和(自身を含む): 39347928

約数和(自身を除く): 21049960

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 101, 104, 134, 169, 202, 208, 268, 338, 404, 536, 676, 808, 871, 1072, 1313, 1352, 1616, 1742, 2626, 2704, 3484, 5252, 6767, 6968, 10504, 11323, 13534, 13936, 17069, 21008, 22646, 27068, 34138, 45292, 54136, 68276, 87971, 90584, 108272, 136552, 175942, 181168, 273104, 351884, 703768, 1143623, 1407536, 2287246, 4574492, 9148984, 18297968]

約数ペア:

[(1, 18297968), (2, 9148984), (4, 4574492), (8, 2287246), (13, 1407536), (16, 1143623), (26, 703768), (52, 351884), (67, 273104), (101, 181168), (104, 175942), (134, 136552), (169, 108272), (202, 90584), (208, 87971), (268, 68276), (338, 54136), (404, 45292), (536, 34138), (676, 27068), (808, 22646), (871, 21008), (1072, 17069), (1313, 13936), (1352, 13534), (1616, 11323), (1742, 10504), (2626, 6968), (2704, 6767), (3484, 5252)]