18755784

素因数分解:

$2^3\times 3^2\times {\mathrm{331}}^1\times {\mathrm{787}}^1$

素因数の和:1130

約数の個数: 48

約数和(自身を含む): 51015120

約数和(自身を除く): 32259336

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 331, 662, 787, 993, 1324, 1574, 1986, 2361, 2648, 2979, 3148, 3972, 4722, 5958, 6296, 7083, 7944, 9444, 11916, 14166, 18888, 23832, 28332, 56664, 260497, 520994, 781491, 1041988, 1562982, 2083976, 2344473, 3125964, 4688946, 6251928, 9377892, 18755784]

約数ペア:

[(1, 18755784), (2, 9377892), (3, 6251928), (4, 4688946), (6, 3125964), (8, 2344473), (9, 2083976), (12, 1562982), (18, 1041988), (24, 781491), (36, 520994), (72, 260497), (331, 56664), (662, 28332), (787, 23832), (993, 18888), (1324, 14166), (1574, 11916), (1986, 9444), (2361, 7944), (2648, 7083), (2979, 6296), (3148, 5958), (3972, 4722)]