216620205

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{547}}^1\times {\mathrm{1553}}^1$

素因数の和:2125

約数の個数: 32

約数和(自身を含む): 367887744

約数和(自身を除く): 151267539

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 547, 1553, 1641, 2735, 4659, 7765, 8205, 9299, 23295, 26401, 27897, 46495, 79203, 132005, 139485, 396015, 849491, 2548473, 4247455, 12742365, 14441347, 43324041, 72206735, 216620205]

約数ペア:

[(1, 216620205), (3, 72206735), (5, 43324041), (15, 14441347), (17, 12742365), (51, 4247455), (85, 2548473), (255, 849491), (547, 396015), (1553, 139485), (1641, 132005), (2735, 79203), (4659, 46495), (7765, 27897), (8205, 26401), (9299, 23295)]