21044085

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 34700160

約数和(自身を除く): 13656075

約数列:

[1, 3, 5, 15, 61, 109, 183, 211, 305, 327, 545, 633, 915, 1055, 1635, 3165, 6649, 12871, 19947, 22999, 33245, 38613, 64355, 68997, 99735, 114995, 193065, 344985, 1402939, 4208817, 7014695, 21044085]

約数ペア:

[(1, 21044085), (3, 7014695), (5, 4208817), (15, 1402939), (61, 344985), (109, 193065), (183, 114995), (211, 99735), (305, 68997), (327, 64355), (545, 38613), (633, 33245), (915, 22999), (1055, 19947), (1635, 12871), (3165, 6649)]