21791574

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{797}}^1$

素因数の和:850

約数の個数: 72

約数和(自身を含む): 56766528

約数和(自身を除く): 34974954

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 49, 62, 63, 93, 98, 126, 147, 186, 217, 279, 294, 434, 441, 558, 651, 797, 882, 1302, 1519, 1594, 1953, 2391, 3038, 3906, 4557, 4782, 5579, 7173, 9114, 11158, 13671, 14346, 16737, 24707, 27342, 33474, 39053, 49414, 50211, 74121, 78106, 100422, 117159, 148242, 172949, 222363, 234318, 345898, 351477, 444726, 518847, 702954, 1037694, 1210643, 1556541, 2421286, 3113082, 3631929, 7263858, 10895787, 21791574]

約数ペア:

[(1, 21791574), (2, 10895787), (3, 7263858), (6, 3631929), (7, 3113082), (9, 2421286), (14, 1556541), (18, 1210643), (21, 1037694), (31, 702954), (42, 518847), (49, 444726), (62, 351477), (63, 345898), (93, 234318), (98, 222363), (126, 172949), (147, 148242), (186, 117159), (217, 100422), (279, 78106), (294, 74121), (434, 50211), (441, 49414), (558, 39053), (651, 33474), (797, 27342), (882, 24707), (1302, 16737), (1519, 14346), (1594, 13671), (1953, 11158), (2391, 9114), (3038, 7173), (3906, 5579), (4557, 4782)]