21202648

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 40748400

約数和(自身を除く): 19545752

約数列:

[1, 2, 4, 8, 89, 97, 178, 194, 307, 356, 388, 614, 712, 776, 1228, 2456, 8633, 17266, 27323, 29779, 34532, 54646, 59558, 69064, 109292, 119116, 218584, 238232, 2650331, 5300662, 10601324, 21202648]

約数ペア:

[(1, 21202648), (2, 10601324), (4, 5300662), (8, 2650331), (89, 238232), (97, 218584), (178, 119116), (194, 109292), (307, 69064), (356, 59558), (388, 54646), (614, 34532), (712, 29779), (776, 27323), (1228, 17266), (2456, 8633)]