18798872

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 38460960

約数和(自身を除く): 19662088

約数列:

[1, 2, 4, 8, 17, 34, 47, 68, 94, 136, 173, 188, 289, 346, 376, 578, 692, 799, 1156, 1384, 1598, 2312, 2941, 3196, 5882, 6392, 8131, 11764, 13583, 16262, 23528, 27166, 32524, 49997, 54332, 65048, 99994, 108664, 138227, 199988, 276454, 399976, 552908, 1105816, 2349859, 4699718, 9399436, 18798872]

約数ペア:

[(1, 18798872), (2, 9399436), (4, 4699718), (8, 2349859), (17, 1105816), (34, 552908), (47, 399976), (68, 276454), (94, 199988), (136, 138227), (173, 108664), (188, 99994), (289, 65048), (346, 54332), (376, 49997), (578, 32524), (692, 27166), (799, 23528), (1156, 16262), (1384, 13583), (1598, 11764), (2312, 8131), (2941, 6392), (3196, 5882)]