21204248

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6577}}^1$

素因数の和:6627

約数の個数: 32

約数和(自身を含む): 44204160

約数和(自身を除く): 22999912

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6577, 13154, 26308, 52616, 85501, 171002, 203887, 342004, 407774, 684008, 815548, 1631096, 2650531, 5301062, 10602124, 21204248]

約数ペア:

[(1, 21204248), (2, 10602124), (4, 5301062), (8, 2650531), (13, 1631096), (26, 815548), (31, 684008), (52, 407774), (62, 342004), (104, 203887), (124, 171002), (248, 85501), (403, 52616), (806, 26308), (1612, 13154), (3224, 6577)]