19291688

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{751}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 41284800

約数和(自身を除く): 21993112

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 169, 247, 338, 494, 676, 751, 988, 1352, 1502, 1976, 3004, 3211, 6008, 6422, 9763, 12844, 14269, 19526, 25688, 28538, 39052, 57076, 78104, 114152, 126919, 185497, 253838, 370994, 507676, 741988, 1015352, 1483976, 2411461, 4822922, 9645844, 19291688]

約数ペア:

[(1, 19291688), (2, 9645844), (4, 4822922), (8, 2411461), (13, 1483976), (19, 1015352), (26, 741988), (38, 507676), (52, 370994), (76, 253838), (104, 185497), (152, 126919), (169, 114152), (247, 78104), (338, 57076), (494, 39052), (676, 28538), (751, 25688), (988, 19526), (1352, 14269), (1502, 12844), (1976, 9763), (3004, 6422), (3211, 6008)]