18963536

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:459

約数の個数: 40

約数和(自身を含む): 38223744

約数和(自身を除く): 19260208

約数列:

[1, 2, 4, 8, 16, 37, 74, 103, 148, 206, 296, 311, 412, 592, 622, 824, 1244, 1648, 2488, 3811, 4976, 7622, 11507, 15244, 23014, 30488, 32033, 46028, 60976, 64066, 92056, 128132, 184112, 256264, 512528, 1185221, 2370442, 4740884, 9481768, 18963536]

約数ペア:

[(1, 18963536), (2, 9481768), (4, 4740884), (8, 2370442), (16, 1185221), (37, 512528), (74, 256264), (103, 184112), (148, 128132), (206, 92056), (296, 64066), (311, 60976), (412, 46028), (592, 32033), (622, 30488), (824, 23014), (1244, 15244), (1648, 11507), (2488, 7622), (3811, 4976)]