291247281

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{809}}^1$

素因数の和:1026

約数の個数: 48

約数和(自身を含む): 482947920

約数和(自身を除く): 191700639

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 181, 221, 543, 663, 809, 1629, 1989, 2353, 2427, 3077, 7059, 7281, 9231, 10517, 13753, 21177, 27693, 31551, 40001, 41259, 94653, 120003, 123777, 146429, 178789, 360009, 439287, 536367, 1317861, 1609101, 1903577, 2489293, 5710731, 7467879, 17132193, 22403637, 32360809, 97082427, 291247281]

約数ペア:

[(1, 291247281), (3, 97082427), (9, 32360809), (13, 22403637), (17, 17132193), (39, 7467879), (51, 5710731), (117, 2489293), (153, 1903577), (181, 1609101), (221, 1317861), (543, 536367), (663, 439287), (809, 360009), (1629, 178789), (1989, 146429), (2353, 123777), (2427, 120003), (3077, 94653), (7059, 41259), (7281, 40001), (9231, 31551), (10517, 27693), (13753, 21177)]