21078568

素因数分解:

$2^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{3331}}^1$

素因数の和:3457

約数の個数: 32

約数和(自身を含む): 45581760

約数和(自身を除く): 24503192

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 113, 226, 452, 791, 904, 1582, 3164, 3331, 6328, 6662, 13324, 23317, 26648, 46634, 93268, 186536, 376403, 752806, 1505612, 2634821, 3011224, 5269642, 10539284, 21078568]

約数ペア:

[(1, 21078568), (2, 10539284), (4, 5269642), (7, 3011224), (8, 2634821), (14, 1505612), (28, 752806), (56, 376403), (113, 186536), (226, 93268), (452, 46634), (791, 26648), (904, 23317), (1582, 13324), (3164, 6662), (3331, 6328)]