291296187

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{1987}}^1$

素因数の和:2192

約数の個数: 48

約数和(自身を含む): 521015040

約数和(自身を除く): 229718853

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 179, 273, 537, 819, 1253, 1611, 1987, 2327, 3759, 5961, 6981, 11277, 13909, 16289, 17883, 20943, 25831, 41727, 48867, 77493, 125181, 146601, 180817, 232479, 355673, 542451, 1067019, 1627353, 2489711, 3201057, 4623749, 7469133, 13871247, 22407399, 32366243, 41613741, 97098729, 291296187]

約数ペア:

[(1, 291296187), (3, 97098729), (7, 41613741), (9, 32366243), (13, 22407399), (21, 13871247), (39, 7469133), (63, 4623749), (91, 3201057), (117, 2489711), (179, 1627353), (273, 1067019), (537, 542451), (819, 355673), (1253, 232479), (1611, 180817), (1987, 146601), (2327, 125181), (3759, 77493), (5961, 48867), (6981, 41727), (11277, 25831), (13909, 20943), (16289, 17883)]