212129281

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1031}}^1$

素因数の和:1094

約数の個数: 48

約数和(自身を含む): 296472960

約数和(自身を除く): 84343679

約数列:

[1, 7, 13, 17, 19, 49, 91, 119, 133, 221, 247, 323, 637, 833, 931, 1031, 1547, 1729, 2261, 4199, 7217, 10829, 12103, 13403, 15827, 17527, 19589, 29393, 50519, 93821, 122689, 137123, 205751, 227851, 254657, 333013, 656747, 858823, 959861, 1594957, 1782599, 2331091, 4329169, 11164699, 12478193, 16317637, 30304183, 212129281]

約数ペア:

[(1, 212129281), (7, 30304183), (13, 16317637), (17, 12478193), (19, 11164699), (49, 4329169), (91, 2331091), (119, 1782599), (133, 1594957), (221, 959861), (247, 858823), (323, 656747), (637, 333013), (833, 254657), (931, 227851), (1031, 205751), (1547, 137123), (1729, 122689), (2261, 93821), (4199, 50519), (7217, 29393), (10829, 19589), (12103, 17527), (13403, 15827)]