19915890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10883}}^1$

素因数の和:10954

約数の個数: 32

約数和(自身を含む): 48586176

約数和(自身を除く): 28670286

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 183, 305, 366, 610, 915, 1830, 10883, 21766, 32649, 54415, 65298, 108830, 163245, 326490, 663863, 1327726, 1991589, 3319315, 3983178, 6638630, 9957945, 19915890]

約数ペア:

[(1, 19915890), (2, 9957945), (3, 6638630), (5, 3983178), (6, 3319315), (10, 1991589), (15, 1327726), (30, 663863), (61, 326490), (122, 163245), (183, 108830), (305, 65298), (366, 54415), (610, 32649), (915, 21766), (1830, 10883)]