21247768

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{3121}}^1$

素因数の和:3187

約数の個数: 32

約数和(自身を含む): 42708960

約数和(自身を除く): 21461192

約数列:

[1, 2, 4, 8, 23, 37, 46, 74, 92, 148, 184, 296, 851, 1702, 3121, 3404, 6242, 6808, 12484, 24968, 71783, 115477, 143566, 230954, 287132, 461908, 574264, 923816, 2655971, 5311942, 10623884, 21247768]

約数ペア:

[(1, 21247768), (2, 10623884), (4, 5311942), (8, 2655971), (23, 923816), (37, 574264), (46, 461908), (74, 287132), (92, 230954), (148, 143566), (184, 115477), (296, 71783), (851, 24968), (1702, 12484), (3121, 6808), (3404, 6242)]