21148431

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{5783}}^1$

素因数の和:5862

約数の個数: 16

約数和(自身を含む): 29984256

約数和(自身を除く): 8835825

約数列:

[1, 3, 23, 53, 69, 159, 1219, 3657, 5783, 17349, 133009, 306499, 399027, 919497, 7049477, 21148431]

約数ペア:

[(1, 21148431), (3, 7049477), (23, 919497), (53, 399027), (69, 306499), (159, 133009), (1219, 17349), (3657, 5783)]