201553821

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1\times {\mathrm{293}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 341228160

約数和(自身を除く): 139674339

約数列:

[1, 3, 7, 9, 21, 61, 63, 179, 183, 293, 427, 537, 549, 879, 1253, 1281, 1611, 2051, 2637, 3759, 3843, 6153, 10919, 11277, 17873, 18459, 32757, 52447, 53619, 76433, 98271, 125111, 157341, 160857, 229299, 367129, 375333, 472023, 687897, 1101387, 1125999, 3199267, 3304161, 9597801, 22394869, 28793403, 67184607, 201553821]

約数ペア:

[(1, 201553821), (3, 67184607), (7, 28793403), (9, 22394869), (21, 9597801), (61, 3304161), (63, 3199267), (179, 1125999), (183, 1101387), (293, 687897), (427, 472023), (537, 375333), (549, 367129), (879, 229299), (1253, 160857), (1281, 157341), (1611, 125111), (2051, 98271), (2637, 76433), (3759, 53619), (3843, 52447), (6153, 32757), (10919, 18459), (11277, 17873)]