21488724

素因数分解:

$2^2\times 3^2\times {\mathrm{137}}^1\times {\mathrm{4357}}^1$

素因数の和:4504

約数の個数: 36

約数和(自身を含む): 54727764

約数和(自身を除く): 33239040

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 137, 274, 411, 548, 822, 1233, 1644, 2466, 4357, 4932, 8714, 13071, 17428, 26142, 39213, 52284, 78426, 156852, 596909, 1193818, 1790727, 2387636, 3581454, 5372181, 7162908, 10744362, 21488724]

約数ペア:

[(1, 21488724), (2, 10744362), (3, 7162908), (4, 5372181), (6, 3581454), (9, 2387636), (12, 1790727), (18, 1193818), (36, 596909), (137, 156852), (274, 78426), (411, 52284), (548, 39213), (822, 26142), (1233, 17428), (1644, 13071), (2466, 8714), (4357, 4932)]