21653442

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{271}}^1$

素因数の和:495

約数の個数: 48

約数和(自身を含む): 49390848

約数和(自身を除く): 27737406

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 193, 207, 271, 386, 414, 542, 579, 813, 1158, 1626, 1737, 2439, 3474, 4439, 4878, 6233, 8878, 12466, 13317, 18699, 26634, 37398, 39951, 52303, 56097, 79902, 104606, 112194, 156909, 313818, 470727, 941454, 1202969, 2405938, 3608907, 7217814, 10826721, 21653442]

約数ペア:

[(1, 21653442), (2, 10826721), (3, 7217814), (6, 3608907), (9, 2405938), (18, 1202969), (23, 941454), (46, 470727), (69, 313818), (138, 156909), (193, 112194), (207, 104606), (271, 79902), (386, 56097), (414, 52303), (542, 39951), (579, 37398), (813, 26634), (1158, 18699), (1626, 13317), (1737, 12466), (2439, 8878), (3474, 6233), (4439, 4878)]