21231483

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{937}}^1$

素因数の和:1043

約数の個数: 32

約数和(自身を含む): 35298816

約数和(自身を除く): 14067333

約数列:

[1, 3, 7, 13, 21, 39, 83, 91, 249, 273, 581, 937, 1079, 1743, 2811, 3237, 6559, 7553, 12181, 19677, 22659, 36543, 77771, 85267, 233313, 255801, 544397, 1011023, 1633191, 3033069, 7077161, 21231483]

約数ペア:

[(1, 21231483), (3, 7077161), (7, 3033069), (13, 1633191), (21, 1011023), (39, 544397), (83, 255801), (91, 233313), (249, 85267), (273, 77771), (581, 36543), (937, 22659), (1079, 19677), (1743, 12181), (2811, 7553), (3237, 6559)]