21432376

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{479}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 28334024

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 47, 56, 68, 94, 119, 136, 188, 238, 329, 376, 476, 479, 658, 799, 952, 958, 1316, 1598, 1916, 2632, 3196, 3353, 3832, 5593, 6392, 6706, 8143, 11186, 13412, 16286, 22372, 22513, 26824, 32572, 44744, 45026, 57001, 65144, 90052, 114002, 157591, 180104, 228004, 315182, 382721, 456008, 630364, 765442, 1260728, 1530884, 2679047, 3061768, 5358094, 10716188, 21432376]

約数ペア:

[(1, 21432376), (2, 10716188), (4, 5358094), (7, 3061768), (8, 2679047), (14, 1530884), (17, 1260728), (28, 765442), (34, 630364), (47, 456008), (56, 382721), (68, 315182), (94, 228004), (119, 180104), (136, 157591), (188, 114002), (238, 90052), (329, 65144), (376, 57001), (476, 45026), (479, 44744), (658, 32572), (799, 26824), (952, 22513), (958, 22372), (1316, 16286), (1598, 13412), (1916, 11186), (2632, 8143), (3196, 6706), (3353, 6392), (3832, 5593)]