28179612981

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{240131}}^1$

素因数の和:240226

約数の個数: 48

約数和(自身を含む): 47200345920

約数和(自身を除く): 19020732939

約数列:

[1, 3, 9, 13, 17, 39, 51, 59, 117, 153, 177, 221, 531, 663, 767, 1003, 1989, 2301, 3009, 6903, 9027, 13039, 39117, 117351, 240131, 720393, 2161179, 3121703, 4082227, 9365109, 12246681, 14167729, 28095327, 36740043, 42503187, 53068951, 127509561, 159206853, 184180477, 240851393, 477620559, 552541431, 722554179, 1657624293, 2167662537, 3131068109, 9393204327, 28179612981]

約数ペア:

[(1, 28179612981), (3, 9393204327), (9, 3131068109), (13, 2167662537), (17, 1657624293), (39, 722554179), (51, 552541431), (59, 477620559), (117, 240851393), (153, 184180477), (177, 159206853), (221, 127509561), (531, 53068951), (663, 42503187), (767, 36740043), (1003, 28095327), (1989, 14167729), (2301, 12246681), (3009, 9365109), (6903, 4082227), (9027, 3121703), (13039, 2161179), (39117, 720393), (117351, 240131)]