19744844

素因数分解:

$2^2\times 7^2\times {\mathrm{131}}^1\times {\mathrm{769}}^1$

素因数の和:918

約数の個数: 36

約数和(自身を含む): 40554360

約数和(自身を除く): 20809516

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 131, 196, 262, 524, 769, 917, 1538, 1834, 3076, 3668, 5383, 6419, 10766, 12838, 21532, 25676, 37681, 75362, 100739, 150724, 201478, 402956, 705173, 1410346, 2820692, 4936211, 9872422, 19744844]

約数ペア:

[(1, 19744844), (2, 9872422), (4, 4936211), (7, 2820692), (14, 1410346), (28, 705173), (49, 402956), (98, 201478), (131, 150724), (196, 100739), (262, 75362), (524, 37681), (769, 25676), (917, 21532), (1538, 12838), (1834, 10766), (3076, 6419), (3668, 5383)]