19952163

素因数分解:

$3^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{457}}^1$

素因数の和:494

約数の個数: 60

約数和(自身を含む): 37905912

約数和(自身を除く): 17953749

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 81, 99, 147, 189, 231, 297, 441, 457, 539, 567, 693, 891, 1323, 1371, 1617, 2079, 3199, 3969, 4113, 4851, 5027, 6237, 9597, 12339, 14553, 15081, 22393, 28791, 35189, 37017, 43659, 45243, 67179, 86373, 105567, 135729, 201537, 246323, 259119, 316701, 407187, 604611, 738969, 950103, 1813833, 2216907, 2850309, 6650721, 19952163]

約数ペア:

[(1, 19952163), (3, 6650721), (7, 2850309), (9, 2216907), (11, 1813833), (21, 950103), (27, 738969), (33, 604611), (49, 407187), (63, 316701), (77, 259119), (81, 246323), (99, 201537), (147, 135729), (189, 105567), (231, 86373), (297, 67179), (441, 45243), (457, 43659), (539, 37017), (567, 35189), (693, 28791), (891, 22393), (1323, 15081), (1371, 14553), (1617, 12339), (2079, 9597), (3199, 6237), (3969, 5027), (4113, 4851)]