21556408

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{5113}}^1$

素因数の和:5167

約数の個数: 32

約数和(自身を含む): 44184960

約数和(自身を除く): 22628552

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 527, 1054, 2108, 4216, 5113, 10226, 20452, 40904, 86921, 158503, 173842, 317006, 347684, 634012, 695368, 1268024, 2694551, 5389102, 10778204, 21556408]

約数ペア:

[(1, 21556408), (2, 10778204), (4, 5389102), (8, 2694551), (17, 1268024), (31, 695368), (34, 634012), (62, 347684), (68, 317006), (124, 173842), (136, 158503), (248, 86921), (527, 40904), (1054, 20452), (2108, 10226), (4216, 5113)]