19331408

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:563

約数の個数: 40

約数和(自身を含む): 39479616

約数和(自身を除く): 20148208

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 131, 184, 262, 368, 401, 524, 802, 1048, 1604, 2096, 3013, 3208, 6026, 6416, 9223, 12052, 18446, 24104, 36892, 48208, 52531, 73784, 105062, 147568, 210124, 420248, 840496, 1208213, 2416426, 4832852, 9665704, 19331408]

約数ペア:

[(1, 19331408), (2, 9665704), (4, 4832852), (8, 2416426), (16, 1208213), (23, 840496), (46, 420248), (92, 210124), (131, 147568), (184, 105062), (262, 73784), (368, 52531), (401, 48208), (524, 36892), (802, 24104), (1048, 18446), (1604, 12052), (2096, 9223), (3013, 6416), (3208, 6026)]