21443350

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:289

約数の個数: 48

約数和(自身を含む): 41814288

約数和(自身を除く): 20370938

約数列:

[1, 2, 5, 10, 25, 37, 50, 67, 74, 134, 173, 185, 335, 346, 370, 670, 865, 925, 1675, 1730, 1850, 2479, 3350, 4325, 4958, 6401, 8650, 11591, 12395, 12802, 23182, 24790, 32005, 57955, 61975, 64010, 115910, 123950, 160025, 289775, 320050, 428867, 579550, 857734, 2144335, 4288670, 10721675, 21443350]

約数ペア:

[(1, 21443350), (2, 10721675), (5, 4288670), (10, 2144335), (25, 857734), (37, 579550), (50, 428867), (67, 320050), (74, 289775), (134, 160025), (173, 123950), (185, 115910), (335, 64010), (346, 61975), (370, 57955), (670, 32005), (865, 24790), (925, 23182), (1675, 12802), (1730, 12395), (1850, 11591), (2479, 8650), (3350, 6401), (4325, 4958)]