19702878671

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{25367}}^1$

素因数の和:25559

約数の個数: 32

約数和(自身を含む): 24460434432

約数和(自身を除く): 4757555761

約数列:

[1, 7, 17, 61, 107, 119, 427, 749, 1037, 1819, 6527, 7259, 12733, 25367, 45689, 110959, 177569, 431239, 776713, 1547387, 2714269, 3018673, 10831709, 18999883, 26305579, 46142573, 165570409, 184139053, 322998011, 1158992863, 2814696953, 19702878671]

約数ペア:

[(1, 19702878671), (7, 2814696953), (17, 1158992863), (61, 322998011), (107, 184139053), (119, 165570409), (427, 46142573), (749, 26305579), (1037, 18999883), (1819, 10831709), (6527, 3018673), (7259, 2714269), (12733, 1547387), (25367, 776713), (45689, 431239), (110959, 177569)]