181221887

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{829}}^1$

素因数の和:1031

約数の個数: 32

約数和(自身を含む): 240952320

約数和(自身を除く): 59730433

約数列:

[1, 7, 11, 17, 77, 119, 167, 187, 829, 1169, 1309, 1837, 2839, 5803, 9119, 12859, 14093, 19873, 31229, 63833, 98651, 138443, 155023, 218603, 969101, 1085161, 1522873, 2353531, 10660111, 16474717, 25888841, 181221887]

約数ペア:

[(1, 181221887), (7, 25888841), (11, 16474717), (17, 10660111), (77, 2353531), (119, 1522873), (167, 1085161), (187, 969101), (829, 218603), (1169, 155023), (1309, 138443), (1837, 98651), (2839, 63833), (5803, 31229), (9119, 19873), (12859, 14093)]