21142912

素因数分解:

$2^7\times 7^2\times {\mathrm{3371}}^1$

素因数の和:3399

約数の個数: 48

約数和(自身を含む): 49012020

約数和(自身を除く): 27869108

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 3371, 6272, 6742, 13484, 23597, 26968, 47194, 53936, 94388, 107872, 165179, 188776, 215744, 330358, 377552, 431488, 660716, 755104, 1321432, 1510208, 2642864, 3020416, 5285728, 10571456, 21142912]

約数ペア:

[(1, 21142912), (2, 10571456), (4, 5285728), (7, 3020416), (8, 2642864), (14, 1510208), (16, 1321432), (28, 755104), (32, 660716), (49, 431488), (56, 377552), (64, 330358), (98, 215744), (112, 188776), (128, 165179), (196, 107872), (224, 94388), (392, 53936), (448, 47194), (784, 26968), (896, 23597), (1568, 13484), (3136, 6742), (3371, 6272)]