19815516

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{8737}}^1$

素因数の和:8760

約数の個数: 60

約数和(自身を含む): 59208688

約数和(自身を除く): 39393172

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 252, 324, 378, 567, 756, 1134, 2268, 8737, 17474, 26211, 34948, 52422, 61159, 78633, 104844, 122318, 157266, 183477, 235899, 244636, 314532, 366954, 471798, 550431, 707697, 733908, 943596, 1100862, 1415394, 1651293, 2201724, 2830788, 3302586, 4953879, 6605172, 9907758, 19815516]

約数ペア:

[(1, 19815516), (2, 9907758), (3, 6605172), (4, 4953879), (6, 3302586), (7, 2830788), (9, 2201724), (12, 1651293), (14, 1415394), (18, 1100862), (21, 943596), (27, 733908), (28, 707697), (36, 550431), (42, 471798), (54, 366954), (63, 314532), (81, 244636), (84, 235899), (108, 183477), (126, 157266), (162, 122318), (189, 104844), (252, 78633), (324, 61159), (378, 52422), (567, 34948), (756, 26211), (1134, 17474), (2268, 8737)]