31881381

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{443}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 51148800

約数和(自身を除く): 19267419

約数列:

[1, 3, 7, 21, 23, 69, 149, 161, 443, 447, 483, 1043, 1329, 3101, 3129, 3427, 9303, 10189, 10281, 23989, 30567, 66007, 71323, 71967, 198021, 213969, 462049, 1386147, 1518161, 4554483, 10627127, 31881381]

約数ペア:

[(1, 31881381), (3, 10627127), (7, 4554483), (21, 1518161), (23, 1386147), (69, 462049), (149, 213969), (161, 198021), (443, 71967), (447, 71323), (483, 66007), (1043, 30567), (1329, 23989), (3101, 10281), (3129, 10189), (3427, 9303)]