21769180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1489}}^1$

素因数の和:1558

約数の個数: 48

約数和(自身を含む): 49563360

約数和(自身を除く): 27794180

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1462, 1489, 2924, 2978, 3655, 5956, 7310, 7445, 14620, 14890, 25313, 29780, 50626, 64027, 101252, 126565, 128054, 253130, 256108, 320135, 506260, 640270, 1088459, 1280540, 2176918, 4353836, 5442295, 10884590, 21769180]

約数ペア:

[(1, 21769180), (2, 10884590), (4, 5442295), (5, 4353836), (10, 2176918), (17, 1280540), (20, 1088459), (34, 640270), (43, 506260), (68, 320135), (85, 256108), (86, 253130), (170, 128054), (172, 126565), (215, 101252), (340, 64027), (430, 50626), (731, 29780), (860, 25313), (1462, 14890), (1489, 14620), (2924, 7445), (2978, 7310), (3655, 5956)]