21974469

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{347}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 34076160

約数和(自身を除く): 12101691

約数列:

[1, 3, 11, 19, 33, 57, 101, 209, 303, 347, 627, 1041, 1111, 1919, 3333, 3817, 5757, 6593, 11451, 19779, 21109, 35047, 63327, 72523, 105141, 217569, 385517, 665893, 1156551, 1997679, 7324823, 21974469]

約数ペア:

[(1, 21974469), (3, 7324823), (11, 1997679), (19, 1156551), (33, 665893), (57, 385517), (101, 217569), (209, 105141), (303, 72523), (347, 63327), (627, 35047), (1041, 21109), (1111, 19779), (1919, 11451), (3333, 6593), (3817, 5757)]