20643498

素因数分解:

$2^1\times 3^4\times {\mathrm{61}}^1\times {\mathrm{2089}}^1$

素因数の和:2164

約数の個数: 40

約数和(自身を含む): 47037540

約数和(自身を除く): 26394042

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 61, 81, 122, 162, 183, 366, 549, 1098, 1647, 2089, 3294, 4178, 4941, 6267, 9882, 12534, 18801, 37602, 56403, 112806, 127429, 169209, 254858, 338418, 382287, 764574, 1146861, 2293722, 3440583, 6881166, 10321749, 20643498]

約数ペア:

[(1, 20643498), (2, 10321749), (3, 6881166), (6, 3440583), (9, 2293722), (18, 1146861), (27, 764574), (54, 382287), (61, 338418), (81, 254858), (122, 169209), (162, 127429), (183, 112806), (366, 56403), (549, 37602), (1098, 18801), (1647, 12534), (2089, 9882), (3294, 6267), (4178, 4941)]