21385590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{7349}}^1$

素因数の和:7456

約数の個数: 32

約数和(自身を含む): 51861600

約数和(自身を除く): 30476010

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 97, 194, 291, 485, 582, 970, 1455, 2910, 7349, 14698, 22047, 36745, 44094, 73490, 110235, 220470, 712853, 1425706, 2138559, 3564265, 4277118, 7128530, 10692795, 21385590]

約数ペア:

[(1, 21385590), (2, 10692795), (3, 7128530), (5, 4277118), (6, 3564265), (10, 2138559), (15, 1425706), (30, 712853), (97, 220470), (194, 110235), (291, 73490), (485, 44094), (582, 36745), (970, 22047), (1455, 14698), (2910, 7349)]