18668572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{313}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 37418752

約数和(自身を除く): 18750180

約数列:

[1, 2, 4, 13, 26, 31, 37, 52, 62, 74, 124, 148, 313, 403, 481, 626, 806, 962, 1147, 1252, 1612, 1924, 2294, 4069, 4588, 8138, 9703, 11581, 14911, 16276, 19406, 23162, 29822, 38812, 46324, 59644, 126139, 150553, 252278, 301106, 359011, 504556, 602212, 718022, 1436044, 4667143, 9334286, 18668572]

約数ペア:

[(1, 18668572), (2, 9334286), (4, 4667143), (13, 1436044), (26, 718022), (31, 602212), (37, 504556), (52, 359011), (62, 301106), (74, 252278), (124, 150553), (148, 126139), (313, 59644), (403, 46324), (481, 38812), (626, 29822), (806, 23162), (962, 19406), (1147, 16276), (1252, 14911), (1612, 11581), (1924, 9703), (2294, 8138), (4069, 4588)]