21326816

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5011}}^1$

素因数の和:5047

約数の個数: 48

約数和(自身を含む): 50520960

約数和(自身を除く): 29194144

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 4256, 5011, 10022, 20044, 35077, 40088, 70154, 80176, 95209, 140308, 160352, 190418, 280616, 380836, 561232, 666463, 761672, 1122464, 1332926, 1523344, 2665852, 3046688, 5331704, 10663408, 21326816]

約数ペア:

[(1, 21326816), (2, 10663408), (4, 5331704), (7, 3046688), (8, 2665852), (14, 1523344), (16, 1332926), (19, 1122464), (28, 761672), (32, 666463), (38, 561232), (56, 380836), (76, 280616), (112, 190418), (133, 160352), (152, 140308), (224, 95209), (266, 80176), (304, 70154), (532, 40088), (608, 35077), (1064, 20044), (2128, 10022), (4256, 5011)]