18947262

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 42172416

約数和(自身を除く): 23225154

約数列:

[1, 2, 3, 6, 23, 31, 43, 46, 62, 69, 86, 93, 103, 129, 138, 186, 206, 258, 309, 618, 713, 989, 1333, 1426, 1978, 2139, 2369, 2666, 2967, 3193, 3999, 4278, 4429, 4738, 5934, 6386, 7107, 7998, 8858, 9579, 13287, 14214, 19158, 26574, 30659, 61318, 73439, 91977, 101867, 137299, 146878, 183954, 203734, 220317, 274598, 305601, 411897, 440634, 611202, 823794, 3157877, 6315754, 9473631, 18947262]

約数ペア:

[(1, 18947262), (2, 9473631), (3, 6315754), (6, 3157877), (23, 823794), (31, 611202), (43, 440634), (46, 411897), (62, 305601), (69, 274598), (86, 220317), (93, 203734), (103, 183954), (129, 146878), (138, 137299), (186, 101867), (206, 91977), (258, 73439), (309, 61318), (618, 30659), (713, 26574), (989, 19158), (1333, 14214), (1426, 13287), (1978, 9579), (2139, 8858), (2369, 7998), (2666, 7107), (2967, 6386), (3193, 5934), (3999, 4738), (4278, 4429)]