19658772

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{431}}^1$

素因数の和:629

約数の個数: 72

約数和(自身を含む): 57238272

約数和(自身を除く): 37579500

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 181, 252, 362, 431, 543, 724, 862, 1086, 1267, 1293, 1629, 1724, 2172, 2534, 2586, 3017, 3258, 3801, 3879, 5068, 5172, 6034, 6516, 7602, 7758, 9051, 11403, 12068, 15204, 15516, 18102, 22806, 27153, 36204, 45612, 54306, 78011, 108612, 156022, 234033, 312044, 468066, 546077, 702099, 936132, 1092154, 1404198, 1638231, 2184308, 2808396, 3276462, 4914693, 6552924, 9829386, 19658772]

約数ペア:

[(1, 19658772), (2, 9829386), (3, 6552924), (4, 4914693), (6, 3276462), (7, 2808396), (9, 2184308), (12, 1638231), (14, 1404198), (18, 1092154), (21, 936132), (28, 702099), (36, 546077), (42, 468066), (63, 312044), (84, 234033), (126, 156022), (181, 108612), (252, 78011), (362, 54306), (431, 45612), (543, 36204), (724, 27153), (862, 22806), (1086, 18102), (1267, 15516), (1293, 15204), (1629, 12068), (1724, 11403), (2172, 9051), (2534, 7758), (2586, 7602), (3017, 6516), (3258, 6034), (3801, 5172), (3879, 5068)]