21043778940

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12989987}}^1$

素因数の和:12990008

約数の個数: 60

約数和(自身を含む): 66015119016

約数和(自身を除く): 44971340076

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 12989987, 25979974, 38969961, 51959948, 64949935, 77939922, 116909883, 129899870, 155879844, 194849805, 233819766, 259799740, 350729649, 389699610, 467639532, 584549415, 701459298, 779399220, 1052188947, 1169098830, 1402918596, 1753648245, 2104377894, 2338197660, 3507296490, 4208755788, 5260944735, 7014592980, 10521889470, 21043778940]

約数ペア:

[(1, 21043778940), (2, 10521889470), (3, 7014592980), (4, 5260944735), (5, 4208755788), (6, 3507296490), (9, 2338197660), (10, 2104377894), (12, 1753648245), (15, 1402918596), (18, 1169098830), (20, 1052188947), (27, 779399220), (30, 701459298), (36, 584549415), (45, 467639532), (54, 389699610), (60, 350729649), (81, 259799740), (90, 233819766), (108, 194849805), (135, 155879844), (162, 129899870), (180, 116909883), (270, 77939922), (324, 64949935), (405, 51959948), (540, 38969961), (810, 25979974), (1620, 12989987)]