21318585

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1013}}^1$

素因数の和:1105

約数の個数: 32

約数和(自身を含む): 36211968

約数和(自身を除く): 14893383

約数列:

[1, 3, 5, 15, 23, 61, 69, 115, 183, 305, 345, 915, 1013, 1403, 3039, 4209, 5065, 7015, 15195, 21045, 23299, 61793, 69897, 116495, 185379, 308965, 349485, 926895, 1421239, 4263717, 7106195, 21318585]

約数ペア:

[(1, 21318585), (3, 7106195), (5, 4263717), (15, 1421239), (23, 926895), (61, 349485), (69, 308965), (115, 185379), (183, 116495), (305, 69897), (345, 61793), (915, 23299), (1013, 21045), (1403, 15195), (3039, 7015), (4209, 5065)]