21870368

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2767}}^1$

素因数の和:2809

約数の個数: 48

約数和(自身を含む): 48827520

約数和(自身を除く): 26957152

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 152, 208, 247, 304, 416, 494, 608, 988, 1976, 2767, 3952, 5534, 7904, 11068, 22136, 35971, 44272, 52573, 71942, 88544, 105146, 143884, 210292, 287768, 420584, 575536, 683449, 841168, 1151072, 1366898, 1682336, 2733796, 5467592, 10935184, 21870368]

約数ペア:

[(1, 21870368), (2, 10935184), (4, 5467592), (8, 2733796), (13, 1682336), (16, 1366898), (19, 1151072), (26, 841168), (32, 683449), (38, 575536), (52, 420584), (76, 287768), (104, 210292), (152, 143884), (208, 105146), (247, 88544), (304, 71942), (416, 52573), (494, 44272), (608, 35971), (988, 22136), (1976, 11068), (2767, 7904), (3952, 5534)]