217989837

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1373}}^1$

素因数の和:1474

約数の個数: 48

約数和(自身を含む): 360097920

約数和(自身を除く): 142108083

約数列:

[1, 3, 9, 13, 23, 39, 59, 69, 117, 177, 207, 299, 531, 767, 897, 1357, 1373, 2301, 2691, 4071, 4119, 6903, 12213, 12357, 17641, 17849, 31579, 52923, 53547, 81007, 94737, 158769, 160641, 243021, 284211, 410527, 729063, 1053091, 1231581, 1863161, 3159273, 3694743, 5589483, 9477819, 16768449, 24221093, 72663279, 217989837]

約数ペア:

[(1, 217989837), (3, 72663279), (9, 24221093), (13, 16768449), (23, 9477819), (39, 5589483), (59, 3694743), (69, 3159273), (117, 1863161), (177, 1231581), (207, 1053091), (299, 729063), (531, 410527), (767, 284211), (897, 243021), (1357, 160641), (1373, 158769), (2301, 94737), (2691, 81007), (4071, 53547), (4119, 52923), (6903, 31579), (12213, 17849), (12357, 17641)]