21258944

素因数分解:

$2^6\times 7^2\times {\mathrm{6779}}^1$

素因数の和:6805

約数の個数: 42

約数和(自身を含む): 49080420

約数和(自身を除く): 27821476

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6779, 13558, 27116, 47453, 54232, 94906, 108464, 189812, 216928, 332171, 379624, 433856, 664342, 759248, 1328684, 1518496, 2657368, 3036992, 5314736, 10629472, 21258944]

約数ペア:

[(1, 21258944), (2, 10629472), (4, 5314736), (7, 3036992), (8, 2657368), (14, 1518496), (16, 1328684), (28, 759248), (32, 664342), (49, 433856), (56, 379624), (64, 332171), (98, 216928), (112, 189812), (196, 108464), (224, 94906), (392, 54232), (448, 47453), (784, 27116), (1568, 13558), (3136, 6779)]