278370909

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{59}}^1\times {\mathrm{991}}^1$

素因数の和:1102

約数の個数: 36

約数和(自身を含む): 427889280

約数和(自身を除く): 149518371

約数列:

[1, 3, 9, 23, 59, 69, 177, 207, 529, 531, 991, 1357, 1587, 2973, 4071, 4761, 8919, 12213, 22793, 31211, 58469, 68379, 93633, 175407, 205137, 280899, 524239, 526221, 1344787, 1572717, 4034361, 4718151, 12103083, 30930101, 92790303, 278370909]

約数ペア:

[(1, 278370909), (3, 92790303), (9, 30930101), (23, 12103083), (59, 4718151), (69, 4034361), (177, 1572717), (207, 1344787), (529, 526221), (531, 524239), (991, 280899), (1357, 205137), (1587, 175407), (2973, 93633), (4071, 68379), (4761, 58469), (8919, 31211), (12213, 22793)]