28864251

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 47698560

約数和(自身を除く): 18834309

約数列:

[1, 3, 9, 13, 29, 39, 47, 87, 117, 141, 181, 261, 377, 423, 543, 611, 1131, 1363, 1629, 1833, 2353, 3393, 4089, 5249, 5499, 7059, 8507, 12267, 15747, 17719, 21177, 25521, 47241, 53157, 68237, 76563, 110591, 159471, 204711, 246703, 331773, 614133, 740109, 995319, 2220327, 3207139, 9621417, 28864251]

約数ペア:

[(1, 28864251), (3, 9621417), (9, 3207139), (13, 2220327), (29, 995319), (39, 740109), (47, 614133), (87, 331773), (117, 246703), (141, 204711), (181, 159471), (261, 110591), (377, 76563), (423, 68237), (543, 53157), (611, 47241), (1131, 25521), (1363, 21177), (1629, 17719), (1833, 15747), (2353, 12267), (3393, 8507), (4089, 7059), (5249, 5499)]