919968987

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1\times {\mathrm{1021}}^1$

素因数の和:1539

約数の個数: 32

約数和(自身を含む): 1419876864

約数和(自身を除く): 499907877

約数列:

[1, 3, 7, 21, 107, 321, 401, 749, 1021, 1203, 2247, 2807, 3063, 7147, 8421, 21441, 42907, 109247, 128721, 300349, 327741, 409421, 764729, 901047, 1228263, 2294187, 2865947, 8597841, 43808047, 131424141, 306656329, 919968987]

約数ペア:

[(1, 919968987), (3, 306656329), (7, 131424141), (21, 43808047), (107, 8597841), (321, 2865947), (401, 2294187), (749, 1228263), (1021, 901047), (1203, 764729), (2247, 409421), (2807, 327741), (3063, 300349), (7147, 128721), (8421, 109247), (21441, 42907)]