21602906

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:386

約数の個数: 32

約数和(自身を含む): 36278928

約数和(自身を除く): 14676022

約数列:

[1, 2, 13, 26, 53, 61, 106, 122, 257, 514, 689, 793, 1378, 1586, 3233, 3341, 6466, 6682, 13621, 15677, 27242, 31354, 42029, 84058, 177073, 203801, 354146, 407602, 830881, 1661762, 10801453, 21602906]

約数ペア:

[(1, 21602906), (2, 10801453), (13, 1661762), (26, 830881), (53, 407602), (61, 354146), (106, 203801), (122, 177073), (257, 84058), (514, 42029), (689, 31354), (793, 27242), (1378, 15677), (1586, 13621), (3233, 6682), (3341, 6466)]