19278935

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 26853120

約数和(自身を除く): 7574185

約数列:

[1, 5, 13, 17, 65, 73, 85, 221, 239, 365, 949, 1105, 1195, 1241, 3107, 4063, 4745, 6205, 15535, 16133, 17447, 20315, 52819, 80665, 87235, 226811, 264095, 296599, 1134055, 1482995, 3855787, 19278935]

約数ペア:

[(1, 19278935), (5, 3855787), (13, 1482995), (17, 1134055), (65, 296599), (73, 264095), (85, 226811), (221, 87235), (239, 80665), (365, 52819), (949, 20315), (1105, 17447), (1195, 16133), (1241, 15535), (3107, 6205), (4063, 4745)]