19511290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{997}}^1$

素因数の和:1126

約数の個数: 32

約数和(自身を含む): 37365120

約数和(自身を除く): 17853830

約数列:

[1, 2, 5, 10, 19, 38, 95, 103, 190, 206, 515, 997, 1030, 1957, 1994, 3914, 4985, 9785, 9970, 18943, 19570, 37886, 94715, 102691, 189430, 205382, 513455, 1026910, 1951129, 3902258, 9755645, 19511290]

約数ペア:

[(1, 19511290), (2, 9755645), (5, 3902258), (10, 1951129), (19, 1026910), (38, 513455), (95, 205382), (103, 189430), (190, 102691), (206, 94715), (515, 37886), (997, 19570), (1030, 18943), (1957, 9970), (1994, 9785), (3914, 4985)]