20784433989

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^2\times {\mathrm{1459}}^1$

素因数の和:1770

約数の個数: 48

約数和(自身を含む): 31800061440

約数和(自身を除く): 11015627451

約数列:

[1, 3, 11, 23, 33, 69, 137, 253, 411, 759, 1459, 1507, 3151, 4377, 4521, 9453, 16049, 18769, 33557, 34661, 48147, 56307, 100671, 103983, 199883, 206459, 369127, 431687, 599649, 619377, 1107381, 1295061, 2198713, 4597309, 4748557, 6596139, 13791927, 14245671, 27383971, 50570399, 82151913, 151711197, 301223681, 629831333, 903671043, 1889493999, 6928144663, 20784433989]

約数ペア:

[(1, 20784433989), (3, 6928144663), (11, 1889493999), (23, 903671043), (33, 629831333), (69, 301223681), (137, 151711197), (253, 82151913), (411, 50570399), (759, 27383971), (1459, 14245671), (1507, 13791927), (3151, 6596139), (4377, 4748557), (4521, 4597309), (9453, 2198713), (16049, 1295061), (18769, 1107381), (33557, 619377), (34661, 599649), (48147, 431687), (56307, 369127), (100671, 206459), (103983, 199883)]