20941734

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 26958426

約数列:

[1, 2, 3, 6, 11, 22, 33, 41, 66, 71, 82, 109, 123, 142, 213, 218, 246, 327, 426, 451, 654, 781, 902, 1199, 1353, 1562, 2343, 2398, 2706, 2911, 3597, 4469, 4686, 5822, 7194, 7739, 8733, 8938, 13407, 15478, 17466, 23217, 26814, 32021, 46434, 49159, 64042, 85129, 96063, 98318, 147477, 170258, 192126, 255387, 294954, 317299, 510774, 634598, 951897, 1903794, 3490289, 6980578, 10470867, 20941734]

約数ペア:

[(1, 20941734), (2, 10470867), (3, 6980578), (6, 3490289), (11, 1903794), (22, 951897), (33, 634598), (41, 510774), (66, 317299), (71, 294954), (82, 255387), (109, 192126), (123, 170258), (142, 147477), (213, 98318), (218, 96063), (246, 85129), (327, 64042), (426, 49159), (451, 46434), (654, 32021), (781, 26814), (902, 23217), (1199, 17466), (1353, 15478), (1562, 13407), (2343, 8938), (2398, 8733), (2706, 7739), (2911, 7194), (3597, 5822), (4469, 4686)]