18248895

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 80

約数和(自身を含む): 38541888

約数和(自身を除く): 20292993

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 41, 45, 63, 81, 105, 123, 135, 157, 189, 205, 287, 315, 369, 405, 471, 567, 615, 785, 861, 945, 1099, 1107, 1413, 1435, 1845, 2355, 2583, 2835, 3297, 3321, 4239, 4305, 5495, 5535, 6437, 7065, 7749, 9891, 12717, 12915, 16485, 16605, 19311, 21195, 23247, 29673, 32185, 38745, 45059, 49455, 57933, 63585, 89019, 96555, 116235, 135177, 148365, 173799, 225295, 289665, 405531, 445095, 521397, 675885, 868995, 1216593, 2027655, 2606985, 3649779, 6082965, 18248895]

約数ペア:

[(1, 18248895), (3, 6082965), (5, 3649779), (7, 2606985), (9, 2027655), (15, 1216593), (21, 868995), (27, 675885), (35, 521397), (41, 445095), (45, 405531), (63, 289665), (81, 225295), (105, 173799), (123, 148365), (135, 135177), (157, 116235), (189, 96555), (205, 89019), (287, 63585), (315, 57933), (369, 49455), (405, 45059), (471, 38745), (567, 32185), (615, 29673), (785, 23247), (861, 21195), (945, 19311), (1099, 16605), (1107, 16485), (1413, 12915), (1435, 12717), (1845, 9891), (2355, 7749), (2583, 7065), (2835, 6437), (3297, 5535), (3321, 5495), (4239, 4305)]