21296580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20879}}^1$

素因数の和:20908

約数の個数: 48

約数和(自身を含む): 63141120

約数和(自身を除く): 41844540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20879, 41758, 62637, 83516, 104395, 125274, 208790, 250548, 313185, 354943, 417580, 626370, 709886, 1064829, 1252740, 1419772, 1774715, 2129658, 3549430, 4259316, 5324145, 7098860, 10648290, 21296580]

約数ペア:

[(1, 21296580), (2, 10648290), (3, 7098860), (4, 5324145), (5, 4259316), (6, 3549430), (10, 2129658), (12, 1774715), (15, 1419772), (17, 1252740), (20, 1064829), (30, 709886), (34, 626370), (51, 417580), (60, 354943), (68, 313185), (85, 250548), (102, 208790), (170, 125274), (204, 104395), (255, 83516), (340, 62637), (510, 41758), (1020, 20879)]