20735841

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 12441759

約数列:

[1, 3, 7, 21, 29, 79, 87, 203, 237, 431, 553, 609, 1293, 1659, 2291, 3017, 6873, 9051, 12499, 16037, 34049, 37497, 48111, 87493, 102147, 238343, 262479, 715029, 987421, 2962263, 6911947, 20735841]

約数ペア:

[(1, 20735841), (3, 6911947), (7, 2962263), (21, 987421), (29, 715029), (79, 262479), (87, 238343), (203, 102147), (237, 87493), (431, 48111), (553, 37497), (609, 34049), (1293, 16037), (1659, 12499), (2291, 9051), (3017, 6873)]