21403316

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{13147}}^1$

素因数の和:13199

約数の個数: 24

約数和(自身を含む): 41968416

約数和(自身を除く): 20565100

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 13147, 26294, 52588, 144617, 289234, 486439, 578468, 972878, 1945756, 5350829, 10701658, 21403316]

約数ペア:

[(1, 21403316), (2, 10701658), (4, 5350829), (11, 1945756), (22, 972878), (37, 578468), (44, 486439), (74, 289234), (148, 144617), (407, 52588), (814, 26294), (1628, 13147)]