18900396

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:463

約数の個数: 72

約数和(自身を含む): 51302160

約数和(自身を除く): 32401764

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 89, 102, 153, 178, 204, 267, 306, 347, 356, 534, 612, 694, 801, 1041, 1068, 1388, 1513, 1602, 2082, 3026, 3123, 3204, 4164, 4539, 5899, 6052, 6246, 9078, 11798, 12492, 13617, 17697, 18156, 23596, 27234, 30883, 35394, 53091, 54468, 61766, 70788, 92649, 106182, 123532, 185298, 212364, 277947, 370596, 525011, 555894, 1050022, 1111788, 1575033, 2100044, 3150066, 4725099, 6300132, 9450198, 18900396]

約数ペア:

[(1, 18900396), (2, 9450198), (3, 6300132), (4, 4725099), (6, 3150066), (9, 2100044), (12, 1575033), (17, 1111788), (18, 1050022), (34, 555894), (36, 525011), (51, 370596), (68, 277947), (89, 212364), (102, 185298), (153, 123532), (178, 106182), (204, 92649), (267, 70788), (306, 61766), (347, 54468), (356, 53091), (534, 35394), (612, 30883), (694, 27234), (801, 23596), (1041, 18156), (1068, 17697), (1388, 13617), (1513, 12492), (1602, 11798), (2082, 9078), (3026, 6246), (3123, 6052), (3204, 5899), (4164, 4539)]