21894916

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2797}}^1$

素因数の和:2923

約数の個数: 24

約数和(自身を含む): 40738880

約数和(自身を除く): 18843964

約数列:

[1, 2, 4, 19, 38, 76, 103, 206, 412, 1957, 2797, 3914, 5594, 7828, 11188, 53143, 106286, 212572, 288091, 576182, 1152364, 5473729, 10947458, 21894916]

約数ペア:

[(1, 21894916), (2, 10947458), (4, 5473729), (19, 1152364), (38, 576182), (76, 288091), (103, 212572), (206, 106286), (412, 53143), (1957, 11188), (2797, 7828), (3914, 5594)]