28478331

素因数分解:

$3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2843}}^1$

素因数の和:2912

約数の個数: 32

約数和(自身を含む): 49144320

約数和(自身を除く): 20665989

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 159, 189, 371, 477, 1113, 1431, 2843, 3339, 8529, 10017, 19901, 25587, 59703, 76761, 150679, 179109, 452037, 537327, 1054753, 1356111, 3164259, 4068333, 9492777, 28478331]

約数ペア:

[(1, 28478331), (3, 9492777), (7, 4068333), (9, 3164259), (21, 1356111), (27, 1054753), (53, 537327), (63, 452037), (159, 179109), (189, 150679), (371, 76761), (477, 59703), (1113, 25587), (1431, 19901), (2843, 10017), (3339, 8529)]