71128533

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2003}}^1$

素因数の和:2121

約数の個数: 32

約数和(自身を含む): 115430400

約数和(自身を除く): 44301867

約数列:

[1, 3, 7, 19, 21, 57, 89, 133, 267, 399, 623, 1691, 1869, 2003, 5073, 6009, 11837, 14021, 35511, 38057, 42063, 114171, 178267, 266399, 534801, 799197, 1247869, 3387073, 3743607, 10161219, 23709511, 71128533]

約数ペア:

[(1, 71128533), (3, 23709511), (7, 10161219), (19, 3743607), (21, 3387073), (57, 1247869), (89, 799197), (133, 534801), (267, 266399), (399, 178267), (623, 114171), (1691, 42063), (1869, 38057), (2003, 35511), (5073, 14021), (6009, 11837)]