21488870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3517}}^1$

素因数の和:3584

約数の個数: 32

約数和(自身を含む): 42553728

約数和(自身を除く): 21064858

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 235, 470, 611, 1222, 3055, 3517, 6110, 7034, 17585, 35170, 45721, 91442, 165299, 228605, 330598, 457210, 826495, 1652990, 2148887, 4297774, 10744435, 21488870]

約数ペア:

[(1, 21488870), (2, 10744435), (5, 4297774), (10, 2148887), (13, 1652990), (26, 826495), (47, 457210), (65, 330598), (94, 228605), (130, 165299), (235, 91442), (470, 45721), (611, 35170), (1222, 17585), (3055, 7034), (3517, 6110)]