20961578

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1367}}^1$

素因数の和:1438

約数の個数: 32

約数和(自身を含む): 37231488

約数和(自身を除く): 16269910

約数列:

[1, 2, 11, 17, 22, 34, 41, 82, 187, 374, 451, 697, 902, 1367, 1394, 2734, 7667, 15037, 15334, 23239, 30074, 46478, 56047, 112094, 255629, 511258, 616517, 952799, 1233034, 1905598, 10480789, 20961578]

約数ペア:

[(1, 20961578), (2, 10480789), (11, 1905598), (17, 1233034), (22, 952799), (34, 616517), (41, 511258), (82, 255629), (187, 112094), (374, 56047), (451, 46478), (697, 30074), (902, 23239), (1367, 15334), (1394, 15037), (2734, 7667)]