21821530

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{431}}^1$

素因数の和:582

約数の個数: 32

約数和(自身を含む): 40497408

約数和(自身を除く): 18675878

約数列:

[1, 2, 5, 10, 61, 83, 122, 166, 305, 415, 431, 610, 830, 862, 2155, 4310, 5063, 10126, 25315, 26291, 35773, 50630, 52582, 71546, 131455, 178865, 262910, 357730, 2182153, 4364306, 10910765, 21821530]

約数ペア:

[(1, 21821530), (2, 10910765), (5, 4364306), (10, 2182153), (61, 357730), (83, 262910), (122, 178865), (166, 131455), (305, 71546), (415, 52582), (431, 50630), (610, 35773), (830, 26291), (862, 25315), (2155, 10126), (4310, 5063)]