18518942

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:308

約数の個数: 32

約数和(自身を含む): 31026240

約数和(自身を除く): 12507298

約数列:

[1, 2, 13, 26, 53, 89, 106, 151, 178, 302, 689, 1157, 1378, 1963, 2314, 3926, 4717, 8003, 9434, 13439, 16006, 26878, 61321, 104039, 122642, 174707, 208078, 349414, 712267, 1424534, 9259471, 18518942]

約数ペア:

[(1, 18518942), (2, 9259471), (13, 1424534), (26, 712267), (53, 349414), (89, 208078), (106, 174707), (151, 122642), (178, 104039), (302, 61321), (689, 26878), (1157, 16006), (1378, 13439), (1963, 9434), (2314, 8003), (3926, 4717)]