21398272

素因数分解:

$2^8\times 7^1\times {\mathrm{11941}}^1$

素因数の和:11964

約数の個数: 36

約数和(自身を含む): 48818896

約数和(自身を除く): 27420624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 11941, 23882, 47764, 83587, 95528, 167174, 191056, 334348, 382112, 668696, 764224, 1337392, 1528448, 2674784, 3056896, 5349568, 10699136, 21398272]

約数ペア:

[(1, 21398272), (2, 10699136), (4, 5349568), (7, 3056896), (8, 2674784), (14, 1528448), (16, 1337392), (28, 764224), (32, 668696), (56, 382112), (64, 334348), (112, 191056), (128, 167174), (224, 95528), (256, 83587), (448, 47764), (896, 23882), (1792, 11941)]