31991212

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2251}}^1$

素因数の和:2302

約数の個数: 48

約数和(自身を含む): 68100480

約数和(自身を除く): 36109268

約数列:

[1, 2, 4, 11, 17, 19, 22, 34, 38, 44, 68, 76, 187, 209, 323, 374, 418, 646, 748, 836, 1292, 2251, 3553, 4502, 7106, 9004, 14212, 24761, 38267, 42769, 49522, 76534, 85538, 99044, 153068, 171076, 420937, 470459, 727073, 841874, 940918, 1454146, 1683748, 1881836, 2908292, 7997803, 15995606, 31991212]

約数ペア:

[(1, 31991212), (2, 15995606), (4, 7997803), (11, 2908292), (17, 1881836), (19, 1683748), (22, 1454146), (34, 940918), (38, 841874), (44, 727073), (68, 470459), (76, 420937), (187, 171076), (209, 153068), (323, 99044), (374, 85538), (418, 76534), (646, 49522), (748, 42769), (836, 38267), (1292, 24761), (2251, 14212), (3553, 9004), (4502, 7106)]