19847265

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 32736000

約数和(自身を除く): 12888735

約数列:

[1, 3, 5, 15, 61, 109, 183, 199, 305, 327, 545, 597, 915, 995, 1635, 2985, 6649, 12139, 19947, 21691, 33245, 36417, 60695, 65073, 99735, 108455, 182085, 325365, 1323151, 3969453, 6615755, 19847265]

約数ペア:

[(1, 19847265), (3, 6615755), (5, 3969453), (15, 1323151), (61, 325365), (109, 182085), (183, 108455), (199, 99735), (305, 65073), (327, 60695), (545, 36417), (597, 33245), (915, 21691), (995, 19947), (1635, 12139), (2985, 6649)]