20757215144

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{19806503}}^1$

素因数の和:19806640

約数の個数: 16

約数和(自身を含む): 39216877920

約数和(自身を除く): 18459662776

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 19806503, 39613006, 79226012, 158452024, 2594651893, 5189303786, 10378607572, 20757215144]

約数ペア:

[(1, 20757215144), (2, 10378607572), (4, 5189303786), (8, 2594651893), (131, 158452024), (262, 79226012), (524, 39613006), (1048, 19806503)]