20921352

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{251}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 34236408

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 69, 92, 138, 151, 184, 251, 276, 302, 453, 502, 552, 604, 753, 906, 1004, 1208, 1506, 1812, 2008, 3012, 3473, 3624, 5773, 6024, 6946, 10419, 11546, 13892, 17319, 20838, 23092, 27784, 34638, 37901, 41676, 46184, 69276, 75802, 83352, 113703, 138552, 151604, 227406, 303208, 454812, 871723, 909624, 1743446, 2615169, 3486892, 5230338, 6973784, 10460676, 20921352]

約数ペア:

[(1, 20921352), (2, 10460676), (3, 6973784), (4, 5230338), (6, 3486892), (8, 2615169), (12, 1743446), (23, 909624), (24, 871723), (46, 454812), (69, 303208), (92, 227406), (138, 151604), (151, 138552), (184, 113703), (251, 83352), (276, 75802), (302, 69276), (453, 46184), (502, 41676), (552, 37901), (604, 34638), (753, 27784), (906, 23092), (1004, 20838), (1208, 17319), (1506, 13892), (1812, 11546), (2008, 10419), (3012, 6946), (3473, 6024), (3624, 5773)]