21288336

素因数分解:

$2^4\times 3^1\times {\mathrm{659}}^1\times {\mathrm{673}}^1$

素因数の和:1343

約数の個数: 40

約数和(自身を含む): 55160160

約数和(自身を除く): 33871824

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 659, 673, 1318, 1346, 1977, 2019, 2636, 2692, 3954, 4038, 5272, 5384, 7908, 8076, 10544, 10768, 15816, 16152, 31632, 32304, 443507, 887014, 1330521, 1774028, 2661042, 3548056, 5322084, 7096112, 10644168, 21288336]

約数ペア:

[(1, 21288336), (2, 10644168), (3, 7096112), (4, 5322084), (6, 3548056), (8, 2661042), (12, 1774028), (16, 1330521), (24, 887014), (48, 443507), (659, 32304), (673, 31632), (1318, 16152), (1346, 15816), (1977, 10768), (2019, 10544), (2636, 8076), (2692, 7908), (3954, 5384), (4038, 5272)]