21165564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{251971}}^1$

素因数の和:251985

約数の個数: 24

約数和(自身を含む): 56441728

約数和(自身を除く): 35276164

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 251971, 503942, 755913, 1007884, 1511826, 1763797, 3023652, 3527594, 5291391, 7055188, 10582782, 21165564]

約数ペア:

[(1, 21165564), (2, 10582782), (3, 7055188), (4, 5291391), (6, 3527594), (7, 3023652), (12, 1763797), (14, 1511826), (21, 1007884), (28, 755913), (42, 503942), (84, 251971)]