28654509

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 43029504

約数和(自身を除く): 14374995

約数列:

[1, 3, 13, 31, 39, 93, 137, 173, 403, 411, 519, 1209, 1781, 2249, 4247, 5343, 5363, 6747, 12741, 16089, 23701, 55211, 69719, 71103, 165633, 209157, 308113, 734731, 924339, 2204193, 9551503, 28654509]

約数ペア:

[(1, 28654509), (3, 9551503), (13, 2204193), (31, 924339), (39, 734731), (93, 308113), (137, 209157), (173, 165633), (403, 71103), (411, 69719), (519, 55211), (1209, 23701), (1781, 16089), (2249, 12741), (4247, 6747), (5343, 5363)]