21638610

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{107}}^2$

素因数の和:237

約数の個数: 96

約数和(自身を含む): 66568320

約数和(自身を除く): 44929710

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, 107, 126, 135, 189, 210, 214, 270, 315, 321, 378, 535, 630, 642, 749, 945, 963, 1070, 1498, 1605, 1890, 1926, 2247, 2889, 3210, 3745, 4494, 4815, 5778, 6741, 7490, 9630, 11235, 11449, 13482, 14445, 20223, 22470, 22898, 28890, 33705, 34347, 40446, 57245, 67410, 68694, 80143, 101115, 103041, 114490, 160286, 171735, 202230, 206082, 240429, 309123, 343470, 400715, 480858, 515205, 618246, 721287, 801430, 1030410, 1202145, 1442574, 1545615, 2163861, 2404290, 3091230, 3606435, 4327722, 7212870, 10819305, 21638610]

約数ペア:

[(1, 21638610), (2, 10819305), (3, 7212870), (5, 4327722), (6, 3606435), (7, 3091230), (9, 2404290), (10, 2163861), (14, 1545615), (15, 1442574), (18, 1202145), (21, 1030410), (27, 801430), (30, 721287), (35, 618246), (42, 515205), (45, 480858), (54, 400715), (63, 343470), (70, 309123), (90, 240429), (105, 206082), (107, 202230), (126, 171735), (135, 160286), (189, 114490), (210, 103041), (214, 101115), (270, 80143), (315, 68694), (321, 67410), (378, 57245), (535, 40446), (630, 34347), (642, 33705), (749, 28890), (945, 22898), (963, 22470), (1070, 20223), (1498, 14445), (1605, 13482), (1890, 11449), (1926, 11235), (2247, 9630), (2889, 7490), (3210, 6741), (3745, 5778), (4494, 4815)]