21858508

素因数分解:

$2^2\times 7^2\times {\mathrm{229}}^1\times {\mathrm{487}}^1$

素因数の和:734

約数の個数: 36

約数和(自身を含む): 44783760

約数和(自身を除く): 22925252

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 229, 458, 487, 916, 974, 1603, 1948, 3206, 3409, 6412, 6818, 11221, 13636, 22442, 23863, 44884, 47726, 95452, 111523, 223046, 446092, 780661, 1561322, 3122644, 5464627, 10929254, 21858508]

約数ペア:

[(1, 21858508), (2, 10929254), (4, 5464627), (7, 3122644), (14, 1561322), (28, 780661), (49, 446092), (98, 223046), (196, 111523), (229, 95452), (458, 47726), (487, 44884), (916, 23863), (974, 22442), (1603, 13636), (1948, 11221), (3206, 6818), (3409, 6412)]