21000984012

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{30703193}}^1$

素因数の和:30703222

約数の個数: 36

約数和(自身を含む): 55879813080

約数和(自身を除く): 34878829068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 30703193, 61406386, 92109579, 122812772, 184219158, 276328737, 368438316, 552657474, 583360667, 1105314948, 1166721334, 1750082001, 2333442668, 3500164002, 5250246003, 7000328004, 10500492006, 21000984012]

約数ペア:

[(1, 21000984012), (2, 10500492006), (3, 7000328004), (4, 5250246003), (6, 3500164002), (9, 2333442668), (12, 1750082001), (18, 1166721334), (19, 1105314948), (36, 583360667), (38, 552657474), (57, 368438316), (76, 276328737), (114, 184219158), (171, 122812772), (228, 92109579), (342, 61406386), (684, 30703193)]