18899985

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{941}}^1$

素因数の和:1065

約数の個数: 32

約数和(自身を含む): 32917248

約数和(自身を除く): 14017263

約数列:

[1, 3, 5, 13, 15, 39, 65, 103, 195, 309, 515, 941, 1339, 1545, 2823, 4017, 4705, 6695, 12233, 14115, 20085, 36699, 61165, 96923, 183495, 290769, 484615, 1259999, 1453845, 3779997, 6299995, 18899985]

約数ペア:

[(1, 18899985), (3, 6299995), (5, 3779997), (13, 1453845), (15, 1259999), (39, 484615), (65, 290769), (103, 183495), (195, 96923), (309, 61165), (515, 36699), (941, 20085), (1339, 14115), (1545, 12233), (2823, 6695), (4017, 4705)]