18743348

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 37914240

約数和(自身を除く): 19170892

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 61, 76, 122, 244, 247, 311, 494, 622, 793, 988, 1159, 1244, 1586, 2318, 3172, 4043, 4636, 5909, 8086, 11818, 15067, 16172, 18971, 23636, 30134, 37942, 60268, 75884, 76817, 153634, 246623, 307268, 360449, 493246, 720898, 986492, 1441796, 4685837, 9371674, 18743348]

約数ペア:

[(1, 18743348), (2, 9371674), (4, 4685837), (13, 1441796), (19, 986492), (26, 720898), (38, 493246), (52, 360449), (61, 307268), (76, 246623), (122, 153634), (244, 76817), (247, 75884), (311, 60268), (494, 37942), (622, 30134), (793, 23636), (988, 18971), (1159, 16172), (1244, 15067), (1586, 11818), (2318, 8086), (3172, 5909), (4043, 4636)]