18518253

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 29707776

約数和(自身を除く): 11189523

約数列:

[1, 3, 13, 17, 31, 39, 51, 53, 93, 159, 221, 289, 403, 527, 663, 689, 867, 901, 1209, 1581, 1643, 2067, 2703, 3757, 4929, 6851, 8959, 11271, 11713, 15317, 20553, 21359, 26877, 27931, 35139, 45951, 64077, 83793, 116467, 199121, 349401, 363103, 474827, 597363, 1089309, 1424481, 6172751, 18518253]

約数ペア:

[(1, 18518253), (3, 6172751), (13, 1424481), (17, 1089309), (31, 597363), (39, 474827), (51, 363103), (53, 349401), (93, 199121), (159, 116467), (221, 83793), (289, 64077), (403, 45951), (527, 35139), (663, 27931), (689, 26877), (867, 21359), (901, 20553), (1209, 15317), (1581, 11713), (1643, 11271), (2067, 8959), (2703, 6851), (3757, 4929)]