20763603

素因数分解:

$3^2\times 7^2\times {\mathrm{197}}^1\times {\mathrm{239}}^1$

素因数の和:456

約数の個数: 36

約数和(自身を含む): 35212320

約数和(自身を除く): 14448717

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 197, 239, 441, 591, 717, 1379, 1673, 1773, 2151, 4137, 5019, 9653, 11711, 12411, 15057, 28959, 35133, 47083, 86877, 105399, 141249, 329581, 423747, 988743, 2307067, 2966229, 6921201, 20763603]

約数ペア:

[(1, 20763603), (3, 6921201), (7, 2966229), (9, 2307067), (21, 988743), (49, 423747), (63, 329581), (147, 141249), (197, 105399), (239, 86877), (441, 47083), (591, 35133), (717, 28959), (1379, 15057), (1673, 12411), (1773, 11711), (2151, 9653), (4137, 5019)]