21221750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7717}}^1$

素因数の和:7745

約数の個数: 32

約数和(自身を含む): 43344288

約数和(自身を除く): 22122538

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7717, 15434, 38585, 77170, 84887, 169774, 192925, 385850, 424435, 848870, 964625, 1929250, 2122175, 4244350, 10610875, 21221750]

約数ペア:

[(1, 21221750), (2, 10610875), (5, 4244350), (10, 2122175), (11, 1929250), (22, 964625), (25, 848870), (50, 424435), (55, 385850), (110, 192925), (125, 169774), (250, 84887), (275, 77170), (550, 38585), (1375, 15434), (2750, 7717)]