18774992

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{313}}^1$

素因数の和:507

約数の個数: 40

約数和(自身を含む): 38313024

約数和(自身を除く): 19538032

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 163, 184, 313, 326, 368, 626, 652, 1252, 1304, 2504, 2608, 3749, 5008, 7199, 7498, 14398, 14996, 28796, 29992, 51019, 57592, 59984, 102038, 115184, 204076, 408152, 816304, 1173437, 2346874, 4693748, 9387496, 18774992]

約数ペア:

[(1, 18774992), (2, 9387496), (4, 4693748), (8, 2346874), (16, 1173437), (23, 816304), (46, 408152), (92, 204076), (163, 115184), (184, 102038), (313, 59984), (326, 57592), (368, 51019), (626, 29992), (652, 28796), (1252, 14996), (1304, 14398), (2504, 7498), (2608, 7199), (3749, 5008)]