19201803

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 28311552

約数和(自身を除く): 9109749

約数列:

[1, 3, 23, 31, 47, 69, 93, 141, 191, 573, 713, 1081, 1457, 2139, 3243, 4371, 4393, 5921, 8977, 13179, 17763, 26931, 33511, 100533, 136183, 206471, 278287, 408549, 619413, 834861, 6400601, 19201803]

約数ペア:

[(1, 19201803), (3, 6400601), (23, 834861), (31, 619413), (47, 408549), (69, 278287), (93, 206471), (141, 136183), (191, 100533), (573, 33511), (713, 26931), (1081, 17763), (1457, 13179), (2139, 8977), (3243, 5921), (4371, 4393)]