21091455

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2029}}^1$

素因数の和:2061

約数の個数: 64

約数和(自身を含む): 46771200

約数和(自身を除く): 25679745

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 77, 99, 105, 135, 165, 189, 231, 297, 315, 385, 495, 693, 945, 1155, 1485, 2029, 2079, 3465, 6087, 10145, 10395, 14203, 18261, 22319, 30435, 42609, 54783, 66957, 71015, 91305, 111595, 127827, 156233, 200871, 213045, 273915, 334785, 383481, 468699, 602613, 639135, 781165, 1004355, 1406097, 1917405, 2343495, 3013065, 4218291, 7030485, 21091455]

約数ペア:

[(1, 21091455), (3, 7030485), (5, 4218291), (7, 3013065), (9, 2343495), (11, 1917405), (15, 1406097), (21, 1004355), (27, 781165), (33, 639135), (35, 602613), (45, 468699), (55, 383481), (63, 334785), (77, 273915), (99, 213045), (105, 200871), (135, 156233), (165, 127827), (189, 111595), (231, 91305), (297, 71015), (315, 66957), (385, 54783), (495, 42609), (693, 30435), (945, 22319), (1155, 18261), (1485, 14203), (2029, 10395), (2079, 10145), (3465, 6087)]