31783521

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{617}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 53157888

約数和(自身を除く): 21374367

約数列:

[1, 3, 7, 11, 21, 33, 77, 223, 231, 617, 669, 1561, 1851, 2453, 4319, 4683, 6787, 7359, 12957, 17171, 20361, 47509, 51513, 137591, 142527, 412773, 963137, 1513501, 2889411, 4540503, 10594507, 31783521]

約数ペア:

[(1, 31783521), (3, 10594507), (7, 4540503), (11, 2889411), (21, 1513501), (33, 963137), (77, 412773), (223, 142527), (231, 137591), (617, 51513), (669, 47509), (1561, 20361), (1851, 17171), (2453, 12957), (4319, 7359), (4683, 6787)]