21174196904

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{537853}}^1$

素因数の和:537922

約数の個数: 64

約数和(自身を含む): 49052284800

約数和(自身を除く): 27878087896

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 37, 38, 56, 74, 76, 133, 148, 152, 259, 266, 296, 518, 532, 703, 1036, 1064, 1406, 2072, 2812, 4921, 5624, 9842, 19684, 39368, 537853, 1075706, 2151412, 3764971, 4302824, 7529942, 10219207, 15059884, 19900561, 20438414, 30119768, 39801122, 40876828, 71534449, 79602244, 81753656, 139303927, 143068898, 159204488, 278607854, 286137796, 378110659, 557215708, 572275592, 756221318, 1114431416, 1512442636, 2646774613, 3024885272, 5293549226, 10587098452, 21174196904]

約数ペア:

[(1, 21174196904), (2, 10587098452), (4, 5293549226), (7, 3024885272), (8, 2646774613), (14, 1512442636), (19, 1114431416), (28, 756221318), (37, 572275592), (38, 557215708), (56, 378110659), (74, 286137796), (76, 278607854), (133, 159204488), (148, 143068898), (152, 139303927), (259, 81753656), (266, 79602244), (296, 71534449), (518, 40876828), (532, 39801122), (703, 30119768), (1036, 20438414), (1064, 19900561), (1406, 15059884), (2072, 10219207), (2812, 7529942), (4921, 4302824), (5624, 3764971), (9842, 2151412), (19684, 1075706), (39368, 537853)]