215087621

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{509}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 269671680

約数和(自身を除く): 54584059

約数列:

[1, 7, 17, 53, 67, 119, 371, 469, 509, 901, 1139, 3551, 3563, 6307, 7973, 8653, 24857, 26977, 34103, 60367, 60571, 188839, 238721, 422569, 458609, 579751, 1807459, 3210263, 4058257, 12652213, 30726803, 215087621]

約数ペア:

[(1, 215087621), (7, 30726803), (17, 12652213), (53, 4058257), (67, 3210263), (119, 1807459), (371, 579751), (469, 458609), (509, 422569), (901, 238721), (1139, 188839), (3551, 60571), (3563, 60367), (6307, 34103), (7973, 26977), (8653, 24857)]