388611279

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{739}}^1$

素因数の和:1260

約数の個数: 48

約数和(自身を含む): 681557760

約数和(自身を除く): 292946481

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 491, 739, 1071, 1473, 2217, 3437, 4419, 5173, 6651, 8347, 10311, 12563, 15519, 25041, 30933, 37689, 46557, 58429, 75123, 87941, 113067, 175287, 263823, 362849, 525861, 791469, 1088547, 2539943, 3265641, 6168433, 7619829, 18505299, 22859487, 43179031, 55515897, 129537093, 388611279]

約数ペア:

[(1, 388611279), (3, 129537093), (7, 55515897), (9, 43179031), (17, 22859487), (21, 18505299), (51, 7619829), (63, 6168433), (119, 3265641), (153, 2539943), (357, 1088547), (491, 791469), (739, 525861), (1071, 362849), (1473, 263823), (2217, 175287), (3437, 113067), (4419, 87941), (5173, 75123), (6651, 58429), (8347, 46557), (10311, 37689), (12563, 30933), (15519, 25041)]