21490168329

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{85087}}^1$

素因数の和:85330

約数の個数: 48

約数和(自身を含む): 37520404480

約数和(自身を除く): 16030236151

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 211, 399, 633, 1197, 1477, 1899, 4009, 4431, 12027, 13293, 28063, 36081, 84189, 85087, 252567, 255261, 595609, 765783, 1616653, 1786827, 4849959, 5360481, 11316571, 14549877, 17953357, 33949713, 53860071, 101849139, 125673499, 161580213, 341113783, 377020497, 1023341349, 1131061491, 2387796481, 3070024047, 7163389443, 21490168329]

約数ペア:

[(1, 21490168329), (3, 7163389443), (7, 3070024047), (9, 2387796481), (19, 1131061491), (21, 1023341349), (57, 377020497), (63, 341113783), (133, 161580213), (171, 125673499), (211, 101849139), (399, 53860071), (633, 33949713), (1197, 17953357), (1477, 14549877), (1899, 11316571), (4009, 5360481), (4431, 4849959), (12027, 1786827), (13293, 1616653), (28063, 765783), (36081, 595609), (84189, 255261), (85087, 252567)]