18691155

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 40423680

約数和(自身を除く): 21732525

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 57, 63, 81, 95, 105, 133, 135, 171, 189, 285, 315, 347, 399, 405, 513, 567, 665, 855, 945, 1041, 1197, 1539, 1735, 1995, 2429, 2565, 2835, 3123, 3591, 5205, 5985, 6593, 7287, 7695, 9369, 10773, 12145, 15615, 17955, 19779, 21861, 28107, 32965, 36435, 46151, 46845, 53865, 59337, 65583, 98895, 109305, 138453, 140535, 178011, 196749, 230755, 296685, 327915, 415359, 534033, 692265, 890055, 983745, 1246077, 2076795, 2670165, 3738231, 6230385, 18691155]

約数ペア:

[(1, 18691155), (3, 6230385), (5, 3738231), (7, 2670165), (9, 2076795), (15, 1246077), (19, 983745), (21, 890055), (27, 692265), (35, 534033), (45, 415359), (57, 327915), (63, 296685), (81, 230755), (95, 196749), (105, 178011), (133, 140535), (135, 138453), (171, 109305), (189, 98895), (285, 65583), (315, 59337), (347, 53865), (399, 46845), (405, 46151), (513, 36435), (567, 32965), (665, 28107), (855, 21861), (945, 19779), (1041, 17955), (1197, 15615), (1539, 12145), (1735, 10773), (1995, 9369), (2429, 7695), (2565, 7287), (2835, 6593), (3123, 5985), (3591, 5205)]