19812996

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{78623}}^1$

素因数の和:78640

約数の個数: 36

約数和(自身を含む): 57238272

約数和(自身を除く): 37425276

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 78623, 157246, 235869, 314492, 471738, 550361, 707607, 943476, 1100722, 1415214, 1651083, 2201444, 2830428, 3302166, 4953249, 6604332, 9906498, 19812996]

約数ペア:

[(1, 19812996), (2, 9906498), (3, 6604332), (4, 4953249), (6, 3302166), (7, 2830428), (9, 2201444), (12, 1651083), (14, 1415214), (18, 1100722), (21, 943476), (28, 707607), (36, 550361), (42, 471738), (63, 314492), (84, 235869), (126, 157246), (252, 78623)]