19910043

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:809

約数の個数: 40

約数和(自身を含む): 33192720

約数和(自身を除く): 13282677

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 171, 323, 459, 513, 761, 969, 1377, 1539, 2283, 2907, 6849, 8721, 12937, 14459, 20547, 26163, 38811, 43377, 61641, 116433, 130131, 245803, 349299, 390393, 737409, 1047897, 1171179, 2212227, 6636681, 19910043]

約数ペア:

[(1, 19910043), (3, 6636681), (9, 2212227), (17, 1171179), (19, 1047897), (27, 737409), (51, 390393), (57, 349299), (81, 245803), (153, 130131), (171, 116433), (323, 61641), (459, 43377), (513, 38811), (761, 26163), (969, 20547), (1377, 14459), (1539, 12937), (2283, 8721), (2907, 6849)]