201745971

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 369698560

約数和(自身を除く): 167952589

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 61, 63, 81, 133, 171, 183, 189, 307, 399, 427, 513, 549, 567, 921, 1159, 1197, 1281, 1539, 1647, 2149, 2763, 3477, 3591, 3843, 4941, 5833, 6447, 8113, 8289, 10431, 10773, 11529, 17499, 18727, 19341, 24339, 24867, 31293, 34587, 40831, 52497, 56181, 58023, 73017, 93879, 122493, 131089, 157491, 168543, 174069, 219051, 355813, 367479, 393267, 472473, 505629, 657153, 1067439, 1102437, 1179801, 1516887, 2490691, 3202317, 3307311, 3539403, 7472073, 9606951, 10618209, 22416219, 28820853, 67248657, 201745971]

約数ペア:

[(1, 201745971), (3, 67248657), (7, 28820853), (9, 22416219), (19, 10618209), (21, 9606951), (27, 7472073), (57, 3539403), (61, 3307311), (63, 3202317), (81, 2490691), (133, 1516887), (171, 1179801), (183, 1102437), (189, 1067439), (307, 657153), (399, 505629), (427, 472473), (513, 393267), (549, 367479), (567, 355813), (921, 219051), (1159, 174069), (1197, 168543), (1281, 157491), (1539, 131089), (1647, 122493), (2149, 93879), (2763, 73017), (3477, 58023), (3591, 56181), (3843, 52497), (4941, 40831), (5833, 34587), (6447, 31293), (8113, 24867), (8289, 24339), (10431, 19341), (10773, 18727), (11529, 17499)]