287389611

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{23671}}^1$

素因数の和:23767

約数の個数: 24

約数和(自身を含む): 443139840

約数和(自身を除く): 155750229

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 4047, 12141, 23671, 71013, 213039, 449749, 1349247, 1680641, 4047741, 5041923, 15125769, 31932179, 95796537, 287389611]

約数ペア:

[(1, 287389611), (3, 95796537), (9, 31932179), (19, 15125769), (57, 5041923), (71, 4047741), (171, 1680641), (213, 1349247), (639, 449749), (1349, 213039), (4047, 71013), (12141, 23671)]