20189746654

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{210437}}^1$

素因数の和:210553

約数の個数: 48

約数和(自身を含む): 38863689840

約数和(自身を除く): 18673943186

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 89, 98, 154, 178, 539, 623, 979, 1078, 1246, 1958, 4361, 6853, 8722, 13706, 47971, 95942, 210437, 420874, 1473059, 2314807, 2946118, 4629614, 10311413, 16203649, 18728893, 20622826, 32407298, 37457786, 113425543, 131102251, 206017823, 226851086, 262204502, 412035646, 917715757, 1442124761, 1835431514, 2884249522, 10094873327, 20189746654]

約数ペア:

[(1, 20189746654), (2, 10094873327), (7, 2884249522), (11, 1835431514), (14, 1442124761), (22, 917715757), (49, 412035646), (77, 262204502), (89, 226851086), (98, 206017823), (154, 131102251), (178, 113425543), (539, 37457786), (623, 32407298), (979, 20622826), (1078, 18728893), (1246, 16203649), (1958, 10311413), (4361, 4629614), (6853, 2946118), (8722, 2314807), (13706, 1473059), (47971, 420874), (95942, 210437)]