21834692

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:452

約数の個数: 36

約数和(自身を含む): 42397740

約数和(自身を除く): 20563048

約数列:

[1, 2, 4, 11, 22, 44, 121, 197, 229, 242, 394, 458, 484, 788, 916, 2167, 2519, 4334, 5038, 8668, 10076, 23837, 27709, 45113, 47674, 55418, 90226, 95348, 110836, 180452, 496243, 992486, 1984972, 5458673, 10917346, 21834692]

約数ペア:

[(1, 21834692), (2, 10917346), (4, 5458673), (11, 1984972), (22, 992486), (44, 496243), (121, 180452), (197, 110836), (229, 95348), (242, 90226), (394, 55418), (458, 47674), (484, 45113), (788, 27709), (916, 23837), (2167, 10076), (2519, 8668), (4334, 5038)]