18749247

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 28444416

約数和(自身を除く): 9695169

約数列:

[1, 3, 11, 33, 43, 73, 129, 181, 219, 473, 543, 803, 1419, 1991, 2409, 3139, 5973, 7783, 9417, 13213, 23349, 34529, 39639, 85613, 103587, 145343, 256839, 436029, 568159, 1704477, 6249749, 18749247]

約数ペア:

[(1, 18749247), (3, 6249749), (11, 1704477), (33, 568159), (43, 436029), (73, 256839), (129, 145343), (181, 103587), (219, 85613), (473, 39639), (543, 34529), (803, 23349), (1419, 13213), (1991, 9417), (2409, 7783), (3139, 5973)]