215502217

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 267909120

約数和(自身を除く): 52406903

約数列:

[1, 7, 17, 67, 119, 151, 179, 469, 1057, 1139, 1253, 2567, 3043, 7973, 10117, 11993, 17969, 21301, 27029, 70819, 83951, 171989, 189203, 203881, 459493, 1203923, 1427167, 1810943, 3216451, 12676601, 30786031, 215502217]

約数ペア:

[(1, 215502217), (7, 30786031), (17, 12676601), (67, 3216451), (119, 1810943), (151, 1427167), (179, 1203923), (469, 459493), (1057, 203881), (1139, 189203), (1253, 171989), (2567, 83951), (3043, 70819), (7973, 27029), (10117, 21301), (11993, 17969)]