18943912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9587}}^1$

素因数の和:9625

約数の個数: 32

約数和(自身を含む): 40269600

約数和(自身を除く): 21325688

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 9587, 19174, 38348, 76696, 124631, 182153, 249262, 364306, 498524, 728612, 997048, 1457224, 2367989, 4735978, 9471956, 18943912]

約数ペア:

[(1, 18943912), (2, 9471956), (4, 4735978), (8, 2367989), (13, 1457224), (19, 997048), (26, 728612), (38, 498524), (52, 364306), (76, 249262), (104, 182153), (152, 124631), (247, 76696), (494, 38348), (988, 19174), (1976, 9587)]