215470906

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{21893}}^1$

素因数の和:21958

約数の個数: 32

約数和(自身を含む): 399346560

約数和(自身を除く): 183875654

約数列:

[1, 2, 7, 14, 19, 37, 38, 74, 133, 259, 266, 518, 703, 1406, 4921, 9842, 21893, 43786, 153251, 306502, 415967, 810041, 831934, 1620082, 2911769, 5670287, 5823538, 11340574, 15390779, 30781558, 107735453, 215470906]

約数ペア:

[(1, 215470906), (2, 107735453), (7, 30781558), (14, 15390779), (19, 11340574), (37, 5823538), (38, 5670287), (74, 2911769), (133, 1620082), (259, 831934), (266, 810041), (518, 415967), (703, 306502), (1406, 153251), (4921, 43786), (9842, 21893)]