20783973

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1163}}^1$

素因数の和:1233

約数の個数: 32

約数和(自身を含む): 33970176

約数和(自身を除く): 13186203

約数列:

[1, 3, 7, 21, 23, 37, 69, 111, 161, 259, 483, 777, 851, 1163, 2553, 3489, 5957, 8141, 17871, 24423, 26749, 43031, 80247, 129093, 187243, 301217, 561729, 903651, 989713, 2969139, 6927991, 20783973]

約数ペア:

[(1, 20783973), (3, 6927991), (7, 2969139), (21, 989713), (23, 903651), (37, 561729), (69, 301217), (111, 187243), (161, 129093), (259, 80247), (483, 43031), (777, 26749), (851, 24423), (1163, 17871), (2553, 8141), (3489, 5957)]