19475248

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{859}}^1$

素因数の和:989

約数の個数: 40

約数和(自身を含む): 41056400

約数和(自身を除く): 21581152

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 109, 208, 218, 436, 859, 872, 1417, 1718, 1744, 2834, 3436, 5668, 6872, 11167, 11336, 13744, 22334, 22672, 44668, 89336, 93631, 178672, 187262, 374524, 749048, 1217203, 1498096, 2434406, 4868812, 9737624, 19475248]

約数ペア:

[(1, 19475248), (2, 9737624), (4, 4868812), (8, 2434406), (13, 1498096), (16, 1217203), (26, 749048), (52, 374524), (104, 187262), (109, 178672), (208, 93631), (218, 89336), (436, 44668), (859, 22672), (872, 22334), (1417, 13744), (1718, 11336), (1744, 11167), (2834, 6872), (3436, 5668)]