28145061

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3359}}^1$

素因数の和:3398

約数の個数: 36

約数和(自身を含む): 49795200

約数和(自身を除く): 21650139

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2793, 3359, 8379, 10077, 23513, 30231, 63821, 70539, 164591, 191463, 211617, 446747, 493773, 574389, 1340241, 1481319, 3127229, 4020723, 9381687, 28145061]

約数ペア:

[(1, 28145061), (3, 9381687), (7, 4020723), (9, 3127229), (19, 1481319), (21, 1340241), (49, 574389), (57, 493773), (63, 446747), (133, 211617), (147, 191463), (171, 164591), (399, 70539), (441, 63821), (931, 30231), (1197, 23513), (2793, 10077), (3359, 8379)]