21993550

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{7211}}^1$

素因数の和:7284

約数の個数: 24

約数和(自身を含む): 41584392

約数和(自身を除く): 19590842

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 305, 610, 1525, 3050, 7211, 14422, 36055, 72110, 180275, 360550, 439871, 879742, 2199355, 4398710, 10996775, 21993550]

約数ペア:

[(1, 21993550), (2, 10996775), (5, 4398710), (10, 2199355), (25, 879742), (50, 439871), (61, 360550), (122, 180275), (305, 72110), (610, 36055), (1525, 14422), (3050, 7211)]