21729435

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15919}}^1$

素因数の和:15947

約数の個数: 32

約数和(自身を含む): 42792960

約数和(自身を除く): 21063525

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15919, 47757, 79595, 111433, 206947, 238785, 334299, 557165, 620841, 1034735, 1448629, 1671495, 3104205, 4345887, 7243145, 21729435]

約数ペア:

[(1, 21729435), (3, 7243145), (5, 4345887), (7, 3104205), (13, 1671495), (15, 1448629), (21, 1034735), (35, 620841), (39, 557165), (65, 334299), (91, 238785), (105, 206947), (195, 111433), (273, 79595), (455, 47757), (1365, 15919)]