27789543

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 45489600

約数和(自身を除く): 17700057

約数列:

[1, 3, 9, 17, 23, 51, 53, 69, 149, 153, 159, 207, 391, 447, 477, 901, 1173, 1219, 1341, 2533, 2703, 3427, 3519, 3657, 7599, 7897, 8109, 10281, 10971, 20723, 22797, 23691, 30843, 58259, 62169, 71073, 134249, 174777, 181631, 186507, 402747, 524331, 544893, 1208241, 1634679, 3087727, 9263181, 27789543]

約数ペア:

[(1, 27789543), (3, 9263181), (9, 3087727), (17, 1634679), (23, 1208241), (51, 544893), (53, 524331), (69, 402747), (149, 186507), (153, 181631), (159, 174777), (207, 134249), (391, 71073), (447, 62169), (477, 58259), (901, 30843), (1173, 23691), (1219, 22797), (1341, 20723), (2533, 10971), (2703, 10281), (3427, 8109), (3519, 7897), (3657, 7599)]