18853688

素因数分解:

$2^3\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1709}}^1$

素因数の和:1919

約数の個数: 32

約数和(自身を含む): 40629600

約数和(自身を除く): 21775912

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 197, 394, 788, 1379, 1576, 1709, 2758, 3418, 5516, 6836, 11032, 11963, 13672, 23926, 47852, 95704, 336673, 673346, 1346692, 2356711, 2693384, 4713422, 9426844, 18853688]

約数ペア:

[(1, 18853688), (2, 9426844), (4, 4713422), (7, 2693384), (8, 2356711), (14, 1346692), (28, 673346), (56, 336673), (197, 95704), (394, 47852), (788, 23926), (1379, 13672), (1576, 11963), (1709, 11032), (2758, 6836), (3418, 5516)]