21615930

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11437}}^1$

素因数の和:11460

約数の個数: 64

約数和(自身を含む): 65882880

約数和(自身を除く): 44266950

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11437, 22874, 34311, 57185, 68622, 80059, 102933, 114370, 160118, 171555, 205866, 240177, 308799, 343110, 400295, 480354, 514665, 617598, 720531, 800590, 1029330, 1200885, 1441062, 1543995, 2161593, 2401770, 3087990, 3602655, 4323186, 7205310, 10807965, 21615930]

約数ペア:

[(1, 21615930), (2, 10807965), (3, 7205310), (5, 4323186), (6, 3602655), (7, 3087990), (9, 2401770), (10, 2161593), (14, 1543995), (15, 1441062), (18, 1200885), (21, 1029330), (27, 800590), (30, 720531), (35, 617598), (42, 514665), (45, 480354), (54, 400295), (63, 343110), (70, 308799), (90, 240177), (105, 205866), (126, 171555), (135, 160118), (189, 114370), (210, 102933), (270, 80059), (315, 68622), (378, 57185), (630, 34311), (945, 22874), (1890, 11437)]