17786139

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 28016640

約数和(自身を除く): 10230501

約数列:

[1, 3, 7, 21, 71, 79, 151, 213, 237, 453, 497, 553, 1057, 1491, 1659, 3171, 5609, 10721, 11929, 16827, 32163, 35787, 39263, 75047, 83503, 117789, 225141, 250509, 846959, 2540877, 5928713, 17786139]

約数ペア:

[(1, 17786139), (3, 5928713), (7, 2540877), (21, 846959), (71, 250509), (79, 225141), (151, 117789), (213, 83503), (237, 75047), (453, 39263), (497, 35787), (553, 32163), (1057, 16827), (1491, 11929), (1659, 10721), (3171, 5609)]