21179808

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{5657}}^1$

素因数の和:5686

約数の個数: 72

約数和(自身を含む): 64874628

約数和(自身を除く): 43694820

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 5657, 11314, 16971, 22628, 33942, 45256, 50913, 67884, 73541, 90512, 101826, 135768, 147082, 181024, 203652, 220623, 271536, 294164, 407304, 441246, 543072, 588328, 661869, 814608, 882492, 1176656, 1323738, 1629216, 1764984, 2353312, 2647476, 3529968, 5294952, 7059936, 10589904, 21179808]

約数ペア:

[(1, 21179808), (2, 10589904), (3, 7059936), (4, 5294952), (6, 3529968), (8, 2647476), (9, 2353312), (12, 1764984), (13, 1629216), (16, 1323738), (18, 1176656), (24, 882492), (26, 814608), (32, 661869), (36, 588328), (39, 543072), (48, 441246), (52, 407304), (72, 294164), (78, 271536), (96, 220623), (104, 203652), (117, 181024), (144, 147082), (156, 135768), (208, 101826), (234, 90512), (288, 73541), (312, 67884), (416, 50913), (468, 45256), (624, 33942), (936, 22628), (1248, 16971), (1872, 11314), (3744, 5657)]