20963145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4643}}^1$

素因数の和:4701

約数の個数: 32

約数和(自身を含む): 39232512

約数和(自身を除く): 18269367

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 105, 129, 215, 301, 645, 903, 1505, 4515, 4643, 13929, 23215, 32501, 69645, 97503, 162505, 199649, 487515, 598947, 998245, 1397543, 2994735, 4192629, 6987715, 20963145]

約数ペア:

[(1, 20963145), (3, 6987715), (5, 4192629), (7, 2994735), (15, 1397543), (21, 998245), (35, 598947), (43, 487515), (105, 199649), (129, 162505), (215, 97503), (301, 69645), (645, 32501), (903, 23215), (1505, 13929), (4515, 4643)]