81891585

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{29833}}^1$

素因数の和:29905

約数の個数: 24

約数和(自身を含む): 144277224

約数和(自身を除く): 62385639

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745, 29833, 89499, 149165, 268497, 447495, 1342485, 1819813, 5459439, 9099065, 16378317, 27297195, 81891585]

約数ペア:

[(1, 81891585), (3, 27297195), (5, 16378317), (9, 9099065), (15, 5459439), (45, 1819813), (61, 1342485), (183, 447495), (305, 268497), (549, 149165), (915, 89499), (2745, 29833)]