20331688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{195497}}^1$

素因数の和:195516

約数の個数: 16

約数和(自身を含む): 41054580

約数和(自身を除く): 20722892

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 195497, 390994, 781988, 1563976, 2541461, 5082922, 10165844, 20331688]

約数ペア:

[(1, 20331688), (2, 10165844), (4, 5082922), (8, 2541461), (13, 1563976), (26, 781988), (52, 390994), (104, 195497)]