21188716

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{2347}}^1$

素因数の和:2449

約数の個数: 24

約数和(自身を含む): 38723216

約数和(自身を除く): 17534500

約数列:

[1, 2, 4, 37, 61, 74, 122, 148, 244, 2257, 2347, 4514, 4694, 9028, 9388, 86839, 143167, 173678, 286334, 347356, 572668, 5297179, 10594358, 21188716]

約数ペア:

[(1, 21188716), (2, 10594358), (4, 5297179), (37, 572668), (61, 347356), (74, 286334), (122, 173678), (148, 143167), (244, 86839), (2257, 9388), (2347, 9028), (4514, 4694)]