21780768

素因数分解:

$2^5\times 3^1\times {\mathrm{97}}^1\times {\mathrm{2339}}^1$

素因数の和:2449

約数の個数: 48

約数和(自身を含む): 57788640

約数和(自身を除く): 36007872

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 97, 194, 291, 388, 582, 776, 1164, 1552, 2328, 2339, 3104, 4656, 4678, 7017, 9312, 9356, 14034, 18712, 28068, 37424, 56136, 74848, 112272, 224544, 226883, 453766, 680649, 907532, 1361298, 1815064, 2722596, 3630128, 5445192, 7260256, 10890384, 21780768]

約数ペア:

[(1, 21780768), (2, 10890384), (3, 7260256), (4, 5445192), (6, 3630128), (8, 2722596), (12, 1815064), (16, 1361298), (24, 907532), (32, 680649), (48, 453766), (96, 226883), (97, 224544), (194, 112272), (291, 74848), (388, 56136), (582, 37424), (776, 28068), (1164, 18712), (1552, 14034), (2328, 9356), (2339, 9312), (3104, 7017), (4656, 4678)]