21268416

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{8521}}^1$

素因数の和:8549

約数の個数: 56

約数和(自身を含む): 60608464

約数和(自身を除く): 39340048

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 156, 192, 208, 312, 416, 624, 832, 1248, 2496, 8521, 17042, 25563, 34084, 51126, 68168, 102252, 110773, 136336, 204504, 221546, 272672, 332319, 409008, 443092, 545344, 664638, 818016, 886184, 1329276, 1636032, 1772368, 2658552, 3544736, 5317104, 7089472, 10634208, 21268416]

約数ペア:

[(1, 21268416), (2, 10634208), (3, 7089472), (4, 5317104), (6, 3544736), (8, 2658552), (12, 1772368), (13, 1636032), (16, 1329276), (24, 886184), (26, 818016), (32, 664638), (39, 545344), (48, 443092), (52, 409008), (64, 332319), (78, 272672), (96, 221546), (104, 204504), (156, 136336), (192, 110773), (208, 102252), (312, 68168), (416, 51126), (624, 34084), (832, 25563), (1248, 17042), (2496, 8521)]