18980491754

素因数分解:

$2^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{281}}^1\times {\mathrm{20707}}^1$

素因数の和:21230

約数の個数: 32

約数和(自身を含む): 32795508096

約数和(自身を除く): 13815016342

約数列:

[1, 2, 7, 14, 233, 281, 466, 562, 1631, 1967, 3262, 3934, 20707, 41414, 65473, 130946, 144949, 289898, 458311, 916622, 4824731, 5818667, 9649462, 11637334, 33773117, 40730669, 67546234, 81461338, 1355749411, 2711498822, 9490245877, 18980491754]

約数ペア:

[(1, 18980491754), (2, 9490245877), (7, 2711498822), (14, 1355749411), (233, 81461338), (281, 67546234), (466, 40730669), (562, 33773117), (1631, 11637334), (1967, 9649462), (3262, 5818667), (3934, 4824731), (20707, 916622), (41414, 458311), (65473, 289898), (130946, 144949)]