20438158

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:340

約数の個数: 32

約数和(自身を含む): 34306272

約数和(自身を除く): 13868114

約数列:

[1, 2, 13, 26, 43, 86, 101, 181, 202, 362, 559, 1118, 1313, 2353, 2626, 4343, 4706, 7783, 8686, 15566, 18281, 36562, 56459, 101179, 112918, 202358, 237653, 475306, 786083, 1572166, 10219079, 20438158]

約数ペア:

[(1, 20438158), (2, 10219079), (13, 1572166), (26, 786083), (43, 475306), (86, 237653), (101, 202358), (181, 112918), (202, 101179), (362, 56459), (559, 36562), (1118, 18281), (1313, 15566), (2353, 8686), (2626, 7783), (4343, 4706)]