21746816

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1867}}^1$

素因数の和:1901

約数の個数: 64

約数和(自身を含む): 53350080

約数和(自身を除く): 31603264

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 364, 416, 448, 728, 832, 896, 1456, 1664, 1867, 2912, 3734, 5824, 7468, 11648, 13069, 14936, 24271, 26138, 29872, 48542, 52276, 59744, 97084, 104552, 119488, 169897, 194168, 209104, 238976, 339794, 388336, 418208, 679588, 776672, 836416, 1359176, 1553344, 1672832, 2718352, 3106688, 5436704, 10873408, 21746816]

約数ペア:

[(1, 21746816), (2, 10873408), (4, 5436704), (7, 3106688), (8, 2718352), (13, 1672832), (14, 1553344), (16, 1359176), (26, 836416), (28, 776672), (32, 679588), (52, 418208), (56, 388336), (64, 339794), (91, 238976), (104, 209104), (112, 194168), (128, 169897), (182, 119488), (208, 104552), (224, 97084), (364, 59744), (416, 52276), (448, 48542), (728, 29872), (832, 26138), (896, 24271), (1456, 14936), (1664, 13069), (1867, 11648), (2912, 7468), (3734, 5824)]