21579152

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8377}}^1$

素因数の和:8415

約数の個数: 40

約数和(自身を含む): 49865856

約数和(自身を除く): 28286704

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 8377, 16754, 33508, 58639, 67016, 117278, 134032, 192671, 234556, 385342, 469112, 770684, 938224, 1348697, 1541368, 2697394, 3082736, 5394788, 10789576, 21579152]

約数ペア:

[(1, 21579152), (2, 10789576), (4, 5394788), (7, 3082736), (8, 2697394), (14, 1541368), (16, 1348697), (23, 938224), (28, 770684), (46, 469112), (56, 385342), (92, 234556), (112, 192671), (161, 134032), (184, 117278), (322, 67016), (368, 58639), (644, 33508), (1288, 16754), (2576, 8377)]