21236368

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{7333}}^1$

素因数の和:7522

約数の個数: 20

約数和(自身を含む): 41378428

約数和(自身を除く): 20142060

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 7333, 14666, 29332, 58664, 117328, 1327273, 2654546, 5309092, 10618184, 21236368]

約数ペア:

[(1, 21236368), (2, 10618184), (4, 5309092), (8, 2654546), (16, 1327273), (181, 117328), (362, 58664), (724, 29332), (1448, 14666), (2896, 7333)]