20877844

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{2243}}^1$

素因数の和:2439

約数の個数: 24

約数和(自身を含む): 39584160

約数和(自身を除く): 18706316

約数列:

[1, 2, 4, 13, 26, 52, 179, 358, 716, 2243, 2327, 4486, 4654, 8972, 9308, 29159, 58318, 116636, 401497, 802994, 1605988, 5219461, 10438922, 20877844]

約数ペア:

[(1, 20877844), (2, 10438922), (4, 5219461), (13, 1605988), (26, 802994), (52, 401497), (179, 116636), (358, 58318), (716, 29159), (2243, 9308), (2327, 8972), (4486, 4654)]