21194478

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{69263}}^1$

素因数の和:69288

約数の個数: 24

約数和(自身を含む): 48623328

約数和(自身を除く): 27428850

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 69263, 138526, 207789, 415578, 623367, 1177471, 1246734, 2354942, 3532413, 7064826, 10597239, 21194478]

約数ペア:

[(1, 21194478), (2, 10597239), (3, 7064826), (6, 3532413), (9, 2354942), (17, 1246734), (18, 1177471), (34, 623367), (51, 415578), (102, 207789), (153, 138526), (306, 69263)]