18171951

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 29237760

約数和(自身を除く): 11065809

約数列:

[1, 3, 7, 21, 29, 53, 87, 159, 203, 371, 563, 609, 1113, 1537, 1689, 3941, 4611, 10759, 11823, 16327, 29839, 32277, 48981, 89517, 114289, 208873, 342867, 626619, 865331, 2595993, 6057317, 18171951]

約数ペア:

[(1, 18171951), (3, 6057317), (7, 2595993), (21, 865331), (29, 626619), (53, 342867), (87, 208873), (159, 114289), (203, 89517), (371, 48981), (563, 32277), (609, 29839), (1113, 16327), (1537, 11823), (1689, 10759), (3941, 4611)]