15721831827

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7072349}}^1$

素因数の和:7072387

約数の個数: 24

約数和(自身を含む): 25743354000

約数和(自身を除く): 10021522173

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 7072349, 21217047, 63651141, 91940537, 134374631, 275821611, 403123893, 827464833, 1209371679, 1746870203, 5240610609, 15721831827]

約数ペア:

[(1, 15721831827), (3, 5240610609), (9, 1746870203), (13, 1209371679), (19, 827464833), (39, 403123893), (57, 275821611), (117, 134374631), (171, 91940537), (247, 63651141), (741, 21217047), (2223, 7072349)]