71821893

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 121927680

約数和(自身を除く): 50105787

約数列:

[1, 3, 11, 13, 23, 29, 33, 39, 69, 87, 143, 251, 253, 299, 319, 377, 429, 667, 753, 759, 897, 957, 1131, 2001, 2761, 3263, 3289, 4147, 5773, 7279, 7337, 8283, 8671, 9789, 9867, 12441, 17319, 21837, 22011, 26013, 35893, 63503, 75049, 80069, 94627, 95381, 107679, 167417, 190509, 225147, 240207, 283881, 286143, 502251, 825539, 1040897, 1841587, 2176421, 2476617, 3122691, 5524761, 6529263, 23940631, 71821893]

約数ペア:

[(1, 71821893), (3, 23940631), (11, 6529263), (13, 5524761), (23, 3122691), (29, 2476617), (33, 2176421), (39, 1841587), (69, 1040897), (87, 825539), (143, 502251), (251, 286143), (253, 283881), (299, 240207), (319, 225147), (377, 190509), (429, 167417), (667, 107679), (753, 95381), (759, 94627), (897, 80069), (957, 75049), (1131, 63503), (2001, 35893), (2761, 26013), (3263, 22011), (3289, 21837), (4147, 17319), (5773, 12441), (7279, 9867), (7337, 9789), (8283, 8671)]