18946245

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{389}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 32348160

約数和(自身を除く): 13401915

約数列:

[1, 3, 5, 15, 17, 51, 85, 191, 255, 389, 573, 955, 1167, 1945, 2865, 3247, 5835, 6613, 9741, 16235, 19839, 33065, 48705, 74299, 99195, 222897, 371495, 1114485, 1263083, 3789249, 6315415, 18946245]

約数ペア:

[(1, 18946245), (3, 6315415), (5, 3789249), (15, 1263083), (17, 1114485), (51, 371495), (85, 222897), (191, 99195), (255, 74299), (389, 48705), (573, 33065), (955, 19839), (1167, 16235), (1945, 9741), (2865, 6613), (3247, 5835)]