216145919

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{457}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 260290560

約数和(自身を除く): 44144641

約数列:

[1, 11, 19, 31, 73, 209, 341, 457, 589, 803, 1387, 2263, 5027, 6479, 8683, 14167, 15257, 24893, 33361, 42997, 95513, 155837, 269173, 366971, 472967, 633859, 1034191, 2960903, 6972449, 11376101, 19649629, 216145919]

約数ペア:

[(1, 216145919), (11, 19649629), (19, 11376101), (31, 6972449), (73, 2960903), (209, 1034191), (341, 633859), (457, 472967), (589, 366971), (803, 269173), (1387, 155837), (2263, 95513), (5027, 42997), (6479, 33361), (8683, 24893), (14167, 15257)]