18121378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{607}}^1$

素因数の和:702

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 13397342

約数列:

[1, 2, 11, 22, 23, 46, 59, 118, 253, 506, 607, 649, 1214, 1298, 1357, 2714, 6677, 13354, 13961, 14927, 27922, 29854, 35813, 71626, 153571, 307142, 393943, 787886, 823699, 1647398, 9060689, 18121378]

約数ペア:

[(1, 18121378), (2, 9060689), (11, 1647398), (22, 823699), (23, 787886), (46, 393943), (59, 307142), (118, 153571), (253, 71626), (506, 35813), (607, 29854), (649, 27922), (1214, 14927), (1298, 13961), (1357, 13354), (2714, 6677)]