19660347

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 36633600

約数和(自身を除く): 16973253

約数列:

[1, 3, 7, 9, 17, 21, 27, 29, 51, 63, 87, 119, 153, 189, 203, 211, 261, 357, 459, 493, 609, 633, 783, 1071, 1477, 1479, 1827, 1899, 3213, 3451, 3587, 4431, 4437, 5481, 5697, 6119, 10353, 10761, 13293, 13311, 18357, 25109, 31059, 32283, 39879, 42833, 55071, 75327, 93177, 96849, 104023, 128499, 165213, 225981, 312069, 385497, 677943, 728161, 936207, 1156491, 2184483, 2808621, 6553449, 19660347]

約数ペア:

[(1, 19660347), (3, 6553449), (7, 2808621), (9, 2184483), (17, 1156491), (21, 936207), (27, 728161), (29, 677943), (51, 385497), (63, 312069), (87, 225981), (119, 165213), (153, 128499), (189, 104023), (203, 96849), (211, 93177), (261, 75327), (357, 55071), (459, 42833), (493, 39879), (609, 32283), (633, 31059), (783, 25109), (1071, 18357), (1477, 13311), (1479, 13293), (1827, 10761), (1899, 10353), (3213, 6119), (3451, 5697), (3587, 5481), (4431, 4437)]