20219819774

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1\times {\mathrm{6581}}^1$

素因数の和:6953

約数の個数: 64

約数和(自身を含む): 38488587264

約数和(自身を除く): 18268767490

約数列:

[1, 2, 7, 11, 14, 22, 71, 77, 142, 154, 281, 497, 562, 781, 994, 1562, 1967, 3091, 3934, 5467, 6182, 6581, 10934, 13162, 19951, 21637, 39902, 43274, 46067, 72391, 92134, 139657, 144782, 219461, 279314, 438922, 467251, 506737, 934502, 1013474, 1536227, 1849261, 3072454, 3270757, 3698522, 5139761, 6541514, 10279522, 12944827, 20341871, 25889654, 35978327, 40683742, 71956654, 131297531, 142393097, 262595062, 284786194, 919082717, 1444272841, 1838165434, 2888545682, 10109909887, 20219819774]

約数ペア:

[(1, 20219819774), (2, 10109909887), (7, 2888545682), (11, 1838165434), (14, 1444272841), (22, 919082717), (71, 284786194), (77, 262595062), (142, 142393097), (154, 131297531), (281, 71956654), (497, 40683742), (562, 35978327), (781, 25889654), (994, 20341871), (1562, 12944827), (1967, 10279522), (3091, 6541514), (3934, 5139761), (5467, 3698522), (6182, 3270757), (6581, 3072454), (10934, 1849261), (13162, 1536227), (19951, 1013474), (21637, 934502), (39902, 506737), (43274, 467251), (46067, 438922), (72391, 279314), (92134, 219461), (139657, 144782)]