21398762

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{491}}^1$

素因数の和:794

約数の個数: 32

約数和(自身を含む): 40241664

約数和(自身を除く): 18842902

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 283, 491, 566, 982, 1981, 3113, 3437, 3962, 5401, 6226, 6874, 10802, 21791, 37807, 43582, 75614, 138953, 277906, 972671, 1528483, 1945342, 3056966, 10699381, 21398762]

約数ペア:

[(1, 21398762), (2, 10699381), (7, 3056966), (11, 1945342), (14, 1528483), (22, 972671), (77, 277906), (154, 138953), (283, 75614), (491, 43582), (566, 37807), (982, 21791), (1981, 10802), (3113, 6874), (3437, 6226), (3962, 5401)]