21945086

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:260

約数の個数: 32

約数和(自身を含む): 35562240

約数和(自身を除く): 13617154

約数列:

[1, 2, 31, 41, 62, 82, 89, 97, 178, 194, 1271, 2542, 2759, 3007, 3649, 3977, 5518, 6014, 7298, 7954, 8633, 17266, 113119, 123287, 226238, 246574, 267623, 353953, 535246, 707906, 10972543, 21945086]

約数ペア:

[(1, 21945086), (2, 10972543), (31, 707906), (41, 535246), (62, 353953), (82, 267623), (89, 246574), (97, 226238), (178, 123287), (194, 113119), (1271, 17266), (2542, 8633), (2759, 7954), (3007, 7298), (3649, 6014), (3977, 5518)]