18515664

素因数分解:

$2^4\times 3^2\times {\mathrm{71}}^1\times {\mathrm{1811}}^1$

素因数の和:1896

約数の個数: 60

約数和(自身を含む): 52576992

約数和(自身を除く): 34061328

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 71, 72, 142, 144, 213, 284, 426, 568, 639, 852, 1136, 1278, 1704, 1811, 2556, 3408, 3622, 5112, 5433, 7244, 10224, 10866, 14488, 16299, 21732, 28976, 32598, 43464, 65196, 86928, 128581, 130392, 257162, 260784, 385743, 514324, 771486, 1028648, 1157229, 1542972, 2057296, 2314458, 3085944, 4628916, 6171888, 9257832, 18515664]

約数ペア:

[(1, 18515664), (2, 9257832), (3, 6171888), (4, 4628916), (6, 3085944), (8, 2314458), (9, 2057296), (12, 1542972), (16, 1157229), (18, 1028648), (24, 771486), (36, 514324), (48, 385743), (71, 260784), (72, 257162), (142, 130392), (144, 128581), (213, 86928), (284, 65196), (426, 43464), (568, 32598), (639, 28976), (852, 21732), (1136, 16299), (1278, 14488), (1704, 10866), (1811, 10224), (2556, 7244), (3408, 5433), (3622, 5112)]