18897628

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{569}}^1$

素因数の和:634

約数の個数: 36

約数和(自身を含む): 36484560

約数和(自身を除く): 17586932

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 361, 437, 569, 722, 874, 1138, 1444, 1748, 2276, 8303, 10811, 13087, 16606, 21622, 26174, 33212, 43244, 52348, 205409, 248653, 410818, 497306, 821636, 994612, 4724407, 9448814, 18897628]

約数ペア:

[(1, 18897628), (2, 9448814), (4, 4724407), (19, 994612), (23, 821636), (38, 497306), (46, 410818), (76, 248653), (92, 205409), (361, 52348), (437, 43244), (569, 33212), (722, 26174), (874, 21622), (1138, 16606), (1444, 13087), (1748, 10811), (2276, 8303)]