19901127972

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{65579}}^1$

素因数の和:65638

約数の個数: 96

約数和(自身を含む): 53765107200

約数和(自身を除く): 33863979228

約数列:

[1, 2, 3, 4, 6, 11, 12, 19, 22, 33, 38, 44, 57, 66, 76, 114, 121, 132, 209, 228, 242, 363, 418, 484, 627, 726, 836, 1254, 1331, 1452, 2299, 2508, 2662, 3993, 4598, 5324, 6897, 7986, 9196, 13794, 15972, 25289, 27588, 50578, 65579, 75867, 101156, 131158, 151734, 196737, 262316, 303468, 393474, 721369, 786948, 1246001, 1442738, 2164107, 2492002, 2885476, 3738003, 4328214, 4984004, 7476006, 7935059, 8656428, 13706011, 14952012, 15870118, 23805177, 27412022, 31740236, 41118033, 47610354, 54824044, 82236066, 87285649, 95220708, 150766121, 164472132, 174571298, 261856947, 301532242, 349142596, 452298363, 523713894, 603064484, 904596726, 1047427788, 1658427331, 1809193452, 3316854662, 4975281993, 6633709324, 9950563986, 19901127972]

約数ペア:

[(1, 19901127972), (2, 9950563986), (3, 6633709324), (4, 4975281993), (6, 3316854662), (11, 1809193452), (12, 1658427331), (19, 1047427788), (22, 904596726), (33, 603064484), (38, 523713894), (44, 452298363), (57, 349142596), (66, 301532242), (76, 261856947), (114, 174571298), (121, 164472132), (132, 150766121), (209, 95220708), (228, 87285649), (242, 82236066), (363, 54824044), (418, 47610354), (484, 41118033), (627, 31740236), (726, 27412022), (836, 23805177), (1254, 15870118), (1331, 14952012), (1452, 13706011), (2299, 8656428), (2508, 7935059), (2662, 7476006), (3993, 4984004), (4598, 4328214), (5324, 3738003), (6897, 2885476), (7986, 2492002), (9196, 2164107), (13794, 1442738), (15972, 1246001), (25289, 786948), (27588, 721369), (50578, 393474), (65579, 303468), (75867, 262316), (101156, 196737), (131158, 151734)]