21488104

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4003}}^1$

素因数の和:4081

約数の個数: 32

約数和(自身を含む): 44684640

約数和(自身を除く): 23196536

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 4003, 5368, 8006, 16012, 32024, 44033, 88066, 176132, 244183, 352264, 488366, 976732, 1953464, 2686013, 5372026, 10744052, 21488104]

約数ペア:

[(1, 21488104), (2, 10744052), (4, 5372026), (8, 2686013), (11, 1953464), (22, 976732), (44, 488366), (61, 352264), (88, 244183), (122, 176132), (244, 88066), (488, 44033), (671, 32024), (1342, 16012), (2684, 8006), (4003, 5368)]