21687507348

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3233081}}^1$

素因数の和:3233144

約数の個数: 48

約数和(自身を含む): 55764198336

約数和(自身を除く): 34076690988

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 172, 258, 516, 559, 1118, 1677, 2236, 3354, 6708, 3233081, 6466162, 9699243, 12932324, 19398486, 38796972, 42030053, 84060106, 126090159, 139022483, 168120212, 252180318, 278044966, 417067449, 504360636, 556089932, 834134898, 1668269796, 1807292279, 3614584558, 5421876837, 7229169116, 10843753674, 21687507348]

約数ペア:

[(1, 21687507348), (2, 10843753674), (3, 7229169116), (4, 5421876837), (6, 3614584558), (12, 1807292279), (13, 1668269796), (26, 834134898), (39, 556089932), (43, 504360636), (52, 417067449), (78, 278044966), (86, 252180318), (129, 168120212), (156, 139022483), (172, 126090159), (258, 84060106), (516, 42030053), (559, 38796972), (1118, 19398486), (1677, 12932324), (2236, 9699243), (3354, 6466162), (6708, 3233081)]