19988115

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4643}}^1$

素因数の和:4699

約数の個数: 32

約数和(自身を含む): 37449216

約数和(自身を除く): 17461101

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 105, 123, 205, 287, 615, 861, 1435, 4305, 4643, 13929, 23215, 32501, 69645, 97503, 162505, 190363, 487515, 571089, 951815, 1332541, 2855445, 3997623, 6662705, 19988115]

約数ペア:

[(1, 19988115), (3, 6662705), (5, 3997623), (7, 2855445), (15, 1332541), (21, 951815), (35, 571089), (41, 487515), (105, 190363), (123, 162505), (205, 97503), (287, 69645), (615, 32501), (861, 23215), (1435, 13929), (4305, 4643)]