19749996

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{433}}^1$

素因数の和:631

約数の個数: 72

約数和(自身を含む): 57503264

約数和(自身を除く): 37753268

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 181, 252, 362, 433, 543, 724, 866, 1086, 1267, 1299, 1629, 1732, 2172, 2534, 2598, 3031, 3258, 3801, 3897, 5068, 5196, 6062, 6516, 7602, 7794, 9093, 11403, 12124, 15204, 15588, 18186, 22806, 27279, 36372, 45612, 54558, 78373, 109116, 156746, 235119, 313492, 470238, 548611, 705357, 940476, 1097222, 1410714, 1645833, 2194444, 2821428, 3291666, 4937499, 6583332, 9874998, 19749996]

約数ペア:

[(1, 19749996), (2, 9874998), (3, 6583332), (4, 4937499), (6, 3291666), (7, 2821428), (9, 2194444), (12, 1645833), (14, 1410714), (18, 1097222), (21, 940476), (28, 705357), (36, 548611), (42, 470238), (63, 313492), (84, 235119), (126, 156746), (181, 109116), (252, 78373), (362, 54558), (433, 45612), (543, 36372), (724, 27279), (866, 22806), (1086, 18186), (1267, 15588), (1299, 15204), (1629, 12124), (1732, 11403), (2172, 9093), (2534, 7794), (2598, 7602), (3031, 6516), (3258, 6062), (3801, 5196), (3897, 5068)]