77521941

素因数分解:

$3^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2909}}^1$

素因数の和:2975

約数の個数: 40

約数和(自身を含む): 135210240

約数和(自身を除く): 57688299

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 81, 141, 189, 329, 423, 567, 987, 1269, 2909, 2961, 3807, 8727, 8883, 20363, 26181, 26649, 61089, 78543, 136723, 183267, 235629, 410169, 549801, 957061, 1230507, 1649403, 2871183, 3691521, 8613549, 11074563, 25840647, 77521941]

約数ペア:

[(1, 77521941), (3, 25840647), (7, 11074563), (9, 8613549), (21, 3691521), (27, 2871183), (47, 1649403), (63, 1230507), (81, 957061), (141, 549801), (189, 410169), (329, 235629), (423, 183267), (567, 136723), (987, 78543), (1269, 61089), (2909, 26649), (2961, 26181), (3807, 20363), (8727, 8883)]