20964408

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{233}}^1$

素因数の和:428

約数の個数: 64

約数和(自身を含む): 55261440

約数和(自身を除く): 34297032

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 69, 92, 138, 163, 184, 233, 276, 326, 466, 489, 552, 652, 699, 932, 978, 1304, 1398, 1864, 1956, 2796, 3749, 3912, 5359, 5592, 7498, 10718, 11247, 14996, 16077, 21436, 22494, 29992, 32154, 37979, 42872, 44988, 64308, 75958, 89976, 113937, 128616, 151916, 227874, 303832, 455748, 873517, 911496, 1747034, 2620551, 3494068, 5241102, 6988136, 10482204, 20964408]

約数ペア:

[(1, 20964408), (2, 10482204), (3, 6988136), (4, 5241102), (6, 3494068), (8, 2620551), (12, 1747034), (23, 911496), (24, 873517), (46, 455748), (69, 303832), (92, 227874), (138, 151916), (163, 128616), (184, 113937), (233, 89976), (276, 75958), (326, 64308), (466, 44988), (489, 42872), (552, 37979), (652, 32154), (699, 29992), (932, 22494), (978, 21436), (1304, 16077), (1398, 14996), (1864, 11247), (1956, 10718), (2796, 7498), (3749, 5592), (3912, 5359)]