745731

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:128

約数の個数: 36

約数和(自身を含む): 1333800

約数和(自身を除く): 588069

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 89, 133, 147, 171, 267, 399, 441, 623, 801, 931, 1197, 1691, 1869, 2793, 4361, 5073, 5607, 8379, 11837, 13083, 15219, 35511, 39249, 82859, 106533, 248577, 745731]

約数ペア:

[(1, 745731), (3, 248577), (7, 106533), (9, 82859), (19, 39249), (21, 35511), (49, 15219), (57, 13083), (63, 11837), (89, 8379), (133, 5607), (147, 5073), (171, 4361), (267, 2793), (399, 1869), (441, 1691), (623, 1197), (801, 931)]