19977412

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{773}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 43690752

約数和(自身を除く): 23713340

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 71, 91, 142, 182, 284, 364, 497, 773, 923, 994, 1546, 1846, 1988, 3092, 3692, 5411, 6461, 10049, 10822, 12922, 20098, 21644, 25844, 40196, 54883, 70343, 109766, 140686, 219532, 281372, 384181, 713479, 768362, 1426958, 1536724, 2853916, 4994353, 9988706, 19977412]

約数ペア:

[(1, 19977412), (2, 9988706), (4, 4994353), (7, 2853916), (13, 1536724), (14, 1426958), (26, 768362), (28, 713479), (52, 384181), (71, 281372), (91, 219532), (142, 140686), (182, 109766), (284, 70343), (364, 54883), (497, 40196), (773, 25844), (923, 21644), (994, 20098), (1546, 12922), (1846, 10822), (1988, 10049), (3092, 6461), (3692, 5411)]