21329136

素因数分解:

$2^4\times 3^3\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:623

約数の個数: 80

約数和(自身を含む): 61975200

約数和(自身を除く): 40646064

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 97, 108, 144, 194, 216, 291, 388, 432, 509, 582, 776, 873, 1018, 1164, 1527, 1552, 1746, 2036, 2328, 2619, 3054, 3492, 4072, 4581, 4656, 5238, 6108, 6984, 8144, 9162, 10476, 12216, 13743, 13968, 18324, 20952, 24432, 27486, 36648, 41904, 49373, 54972, 73296, 98746, 109944, 148119, 197492, 219888, 296238, 394984, 444357, 592476, 789968, 888714, 1184952, 1333071, 1777428, 2369904, 2666142, 3554856, 5332284, 7109712, 10664568, 21329136]

約数ペア:

[(1, 21329136), (2, 10664568), (3, 7109712), (4, 5332284), (6, 3554856), (8, 2666142), (9, 2369904), (12, 1777428), (16, 1333071), (18, 1184952), (24, 888714), (27, 789968), (36, 592476), (48, 444357), (54, 394984), (72, 296238), (97, 219888), (108, 197492), (144, 148119), (194, 109944), (216, 98746), (291, 73296), (388, 54972), (432, 49373), (509, 41904), (582, 36648), (776, 27486), (873, 24432), (1018, 20952), (1164, 18324), (1527, 13968), (1552, 13743), (1746, 12216), (2036, 10476), (2328, 9162), (2619, 8144), (3054, 6984), (3492, 6108), (4072, 5238), (4581, 4656)]