213256905

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{5153}}^1$

素因数の和:5281

約数の個数: 32

約数和(自身を含む): 356244480

約数和(自身を除く): 142987575

約数列:

[1, 3, 5, 15, 31, 89, 93, 155, 267, 445, 465, 1335, 2759, 5153, 8277, 13795, 15459, 25765, 41385, 77295, 159743, 458617, 479229, 798715, 1375851, 2293085, 2396145, 6879255, 14217127, 42651381, 71085635, 213256905]

約数ペア:

[(1, 213256905), (3, 71085635), (5, 42651381), (15, 14217127), (31, 6879255), (89, 2396145), (93, 2293085), (155, 1375851), (267, 798715), (445, 479229), (465, 458617), (1335, 159743), (2759, 77295), (5153, 41385), (8277, 25765), (13795, 15459)]