21738926

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{397}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 37825920

約数和(自身を除く): 16086994

約数列:

[1, 2, 11, 19, 22, 38, 131, 209, 262, 397, 418, 794, 1441, 2489, 2882, 4367, 4978, 7543, 8734, 15086, 27379, 52007, 54758, 82973, 104014, 165946, 572077, 988133, 1144154, 1976266, 10869463, 21738926]

約数ペア:

[(1, 21738926), (2, 10869463), (11, 1976266), (19, 1144154), (22, 988133), (38, 572077), (131, 165946), (209, 104014), (262, 82973), (397, 54758), (418, 52007), (794, 27379), (1441, 15086), (2489, 8734), (2882, 7543), (4367, 4978)]