21640938

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{2503}}^1$

素因数の和:2650

約数の個数: 32

約数和(自身を含む): 47596032

約数和(自身を除く): 25955094

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 131, 262, 393, 786, 1441, 2503, 2882, 4323, 5006, 7509, 8646, 15018, 27533, 55066, 82599, 165198, 327893, 655786, 983679, 1967358, 3606823, 7213646, 10820469, 21640938]

約数ペア:

[(1, 21640938), (2, 10820469), (3, 7213646), (6, 3606823), (11, 1967358), (22, 983679), (33, 655786), (66, 327893), (131, 165198), (262, 82599), (393, 55066), (786, 27533), (1441, 15018), (2503, 8646), (2882, 7509), (4323, 5006)]