21074192

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{383}}^1$

素因数の和:591

約数の個数: 40

約数和(自身を含む): 43330560

約数和(自身を除く): 22256368

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 181, 304, 362, 383, 724, 766, 1448, 1532, 2896, 3064, 3439, 6128, 6878, 7277, 13756, 14554, 27512, 29108, 55024, 58216, 69323, 116432, 138646, 277292, 554584, 1109168, 1317137, 2634274, 5268548, 10537096, 21074192]

約数ペア:

[(1, 21074192), (2, 10537096), (4, 5268548), (8, 2634274), (16, 1317137), (19, 1109168), (38, 554584), (76, 277292), (152, 138646), (181, 116432), (304, 69323), (362, 58216), (383, 55024), (724, 29108), (766, 27512), (1448, 14554), (1532, 13756), (2896, 7277), (3064, 6878), (3439, 6128)]