21005298

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{347}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 50112000

約数和(自身を除く): 29106702

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 59, 114, 118, 171, 177, 342, 347, 354, 513, 531, 694, 1026, 1041, 1062, 1121, 1593, 2082, 2242, 3123, 3186, 3363, 6246, 6593, 6726, 9369, 10089, 13186, 18738, 19779, 20178, 20473, 30267, 39558, 40946, 59337, 60534, 61419, 118674, 122838, 178011, 184257, 356022, 368514, 388987, 552771, 777974, 1105542, 1166961, 2333922, 3500883, 7001766, 10502649, 21005298]

約数ペア:

[(1, 21005298), (2, 10502649), (3, 7001766), (6, 3500883), (9, 2333922), (18, 1166961), (19, 1105542), (27, 777974), (38, 552771), (54, 388987), (57, 368514), (59, 356022), (114, 184257), (118, 178011), (171, 122838), (177, 118674), (342, 61419), (347, 60534), (354, 59337), (513, 40946), (531, 39558), (694, 30267), (1026, 20473), (1041, 20178), (1062, 19779), (1121, 18738), (1593, 13186), (2082, 10089), (2242, 9369), (3123, 6726), (3186, 6593), (3363, 6246)]