18687768

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{997}}^1$

素因数の和:1088

約数の個数: 64

約数和(自身を含む): 51736320

約数和(自身を除く): 33048552

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 71, 88, 132, 142, 213, 264, 284, 426, 568, 781, 852, 997, 1562, 1704, 1994, 2343, 2991, 3124, 3988, 4686, 5982, 6248, 7976, 9372, 10967, 11964, 18744, 21934, 23928, 32901, 43868, 65802, 70787, 87736, 131604, 141574, 212361, 263208, 283148, 424722, 566296, 778657, 849444, 1557314, 1698888, 2335971, 3114628, 4671942, 6229256, 9343884, 18687768]

約数ペア:

[(1, 18687768), (2, 9343884), (3, 6229256), (4, 4671942), (6, 3114628), (8, 2335971), (11, 1698888), (12, 1557314), (22, 849444), (24, 778657), (33, 566296), (44, 424722), (66, 283148), (71, 263208), (88, 212361), (132, 141574), (142, 131604), (213, 87736), (264, 70787), (284, 65802), (426, 43868), (568, 32901), (781, 23928), (852, 21934), (997, 18744), (1562, 11964), (1704, 10967), (1994, 9372), (2343, 7976), (2991, 6248), (3124, 5982), (3988, 4686)]