18664494

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{991}}^1$

素因数の和:1112

約数の個数: 32

約数和(自身を含む): 38759424

約数和(自身を除く): 20094930

約数列:

[1, 2, 3, 6, 43, 73, 86, 129, 146, 219, 258, 438, 991, 1982, 2973, 3139, 5946, 6278, 9417, 18834, 42613, 72343, 85226, 127839, 144686, 217029, 255678, 434058, 3110749, 6221498, 9332247, 18664494]

約数ペア:

[(1, 18664494), (2, 9332247), (3, 6221498), (6, 3110749), (43, 434058), (73, 255678), (86, 217029), (129, 144686), (146, 127839), (219, 85226), (258, 72343), (438, 42613), (991, 18834), (1982, 9417), (2973, 6278), (3139, 5946)]