21509528

素因数分解:

$2^3\times {\mathrm{631}}^1\times {\mathrm{4261}}^1$

素因数の和:4898

約数の個数: 16

約数和(自身を含む): 40403760

約数和(自身を除く): 18894232

約数列:

[1, 2, 4, 8, 631, 1262, 2524, 4261, 5048, 8522, 17044, 34088, 2688691, 5377382, 10754764, 21509528]

約数ペア:

[(1, 21509528), (2, 10754764), (4, 5377382), (8, 2688691), (631, 34088), (1262, 17044), (2524, 8522), (4261, 5048)]