21517912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1831}}^1$

素因数の和:1963

約数の個数: 32

約数和(自身を含む): 43858080

約数和(自身を除く): 22340168

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 113, 226, 452, 904, 1469, 1831, 2938, 3662, 5876, 7324, 11752, 14648, 23803, 47606, 95212, 190424, 206903, 413806, 827612, 1655224, 2689739, 5379478, 10758956, 21517912]

約数ペア:

[(1, 21517912), (2, 10758956), (4, 5379478), (8, 2689739), (13, 1655224), (26, 827612), (52, 413806), (104, 206903), (113, 190424), (226, 95212), (452, 47606), (904, 23803), (1469, 14648), (1831, 11752), (2938, 7324), (3662, 5876)]