21316256

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{51241}}^1$

素因数の和:51264

約数の個数: 24

約数和(自身を含む): 45195444

約数和(自身を除く): 23879188

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 51241, 102482, 204964, 409928, 666133, 819856, 1332266, 1639712, 2664532, 5329064, 10658128, 21316256]

約数ペア:

[(1, 21316256), (2, 10658128), (4, 5329064), (8, 2664532), (13, 1639712), (16, 1332266), (26, 819856), (32, 666133), (52, 409928), (104, 204964), (208, 102482), (416, 51241)]