21170104

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:188

約数の個数: 64

約数和(自身を含む): 44352000

約数和(自身を除く): 23181896

約数列:

[1, 2, 4, 8, 19, 38, 41, 43, 76, 79, 82, 86, 152, 158, 164, 172, 316, 328, 344, 632, 779, 817, 1501, 1558, 1634, 1763, 3002, 3116, 3239, 3268, 3397, 3526, 6004, 6232, 6478, 6536, 6794, 7052, 12008, 12956, 13588, 14104, 25912, 27176, 33497, 61541, 64543, 66994, 123082, 129086, 133988, 139277, 246164, 258172, 267976, 278554, 492328, 516344, 557108, 1114216, 2646263, 5292526, 10585052, 21170104]

約数ペア:

[(1, 21170104), (2, 10585052), (4, 5292526), (8, 2646263), (19, 1114216), (38, 557108), (41, 516344), (43, 492328), (76, 278554), (79, 267976), (82, 258172), (86, 246164), (152, 139277), (158, 133988), (164, 129086), (172, 123082), (316, 66994), (328, 64543), (344, 61541), (632, 33497), (779, 27176), (817, 25912), (1501, 14104), (1558, 13588), (1634, 12956), (1763, 12008), (3002, 7052), (3116, 6794), (3239, 6536), (3268, 6478), (3397, 6232), (3526, 6004)]