21014728555

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{80527}}^1$

素因数の和:80659

約数の個数: 32

約数和(自身を含む): 27598556160

約数和(自身を除く): 6583827605

約数列:

[1, 5, 19, 41, 67, 95, 205, 335, 779, 1273, 2747, 3895, 6365, 13735, 52193, 80527, 260965, 402635, 1530013, 3301607, 5395309, 7650065, 16508035, 26976545, 62730533, 102510871, 221207669, 313652665, 512554355, 1106038345, 4202945711, 21014728555]

約数ペア:

[(1, 21014728555), (5, 4202945711), (19, 1106038345), (41, 512554355), (67, 313652665), (95, 221207669), (205, 102510871), (335, 62730533), (779, 26976545), (1273, 16508035), (2747, 7650065), (3895, 5395309), (6365, 3301607), (13735, 1530013), (52193, 402635), (80527, 260965)]