1286978

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:218

約数の個数: 32

約数和(自身を含む): 2464128

約数和(自身を除く): 1177150

約数列:

[1, 2, 7, 11, 14, 22, 61, 77, 122, 137, 154, 274, 427, 671, 854, 959, 1342, 1507, 1918, 3014, 4697, 8357, 9394, 10549, 16714, 21098, 58499, 91927, 116998, 183854, 643489, 1286978]

約数ペア:

[(1, 1286978), (2, 643489), (7, 183854), (11, 116998), (14, 91927), (22, 58499), (61, 21098), (77, 16714), (122, 10549), (137, 9394), (154, 8357), (274, 4697), (427, 3014), (671, 1918), (854, 1507), (959, 1342)]