18722547

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{509}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 27952080

約数和(自身を除く): 9229533

約数列:

[1, 3, 9, 61, 67, 183, 201, 509, 549, 603, 1527, 4087, 4581, 12261, 31049, 34103, 36783, 93147, 102309, 279441, 306927, 2080283, 6240849, 18722547]

約数ペア:

[(1, 18722547), (3, 6240849), (9, 2080283), (61, 306927), (67, 279441), (183, 102309), (201, 93147), (509, 36783), (549, 34103), (603, 31049), (1527, 12261), (4087, 4581)]