21281120

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19001}}^1$

素因数の和:19023

約数の個数: 48

約数和(自身を含む): 57462048

約数和(自身を除く): 36180928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 19001, 38002, 76004, 95005, 133007, 152008, 190010, 266014, 304016, 380020, 532028, 608032, 665035, 760040, 1064056, 1330070, 1520080, 2128112, 2660140, 3040160, 4256224, 5320280, 10640560, 21281120]

約数ペア:

[(1, 21281120), (2, 10640560), (4, 5320280), (5, 4256224), (7, 3040160), (8, 2660140), (10, 2128112), (14, 1520080), (16, 1330070), (20, 1064056), (28, 760040), (32, 665035), (35, 608032), (40, 532028), (56, 380020), (70, 304016), (80, 266014), (112, 190010), (140, 152008), (160, 133007), (224, 95005), (280, 76004), (560, 38002), (1120, 19001)]