16205553

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 29492736

約数和(自身を除く): 13287183

約数列:

[1, 3, 7, 9, 13, 21, 39, 47, 63, 91, 117, 141, 273, 329, 421, 423, 611, 819, 987, 1263, 1833, 2947, 2961, 3789, 4277, 5473, 5499, 8841, 12831, 16419, 19787, 26523, 38311, 38493, 49257, 59361, 114933, 138509, 178083, 257231, 344799, 415527, 771693, 1246581, 1800617, 2315079, 5401851, 16205553]

約数ペア:

[(1, 16205553), (3, 5401851), (7, 2315079), (9, 1800617), (13, 1246581), (21, 771693), (39, 415527), (47, 344799), (63, 257231), (91, 178083), (117, 138509), (141, 114933), (273, 59361), (329, 49257), (421, 38493), (423, 38311), (611, 26523), (819, 19787), (987, 16419), (1263, 12831), (1833, 8841), (2947, 5499), (2961, 5473), (3789, 4277)]