18803564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 19298836

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 89, 178, 221, 239, 356, 442, 478, 884, 956, 1157, 1513, 2314, 3026, 3107, 4063, 4628, 6052, 6214, 8126, 12428, 16252, 19669, 21271, 39338, 42542, 52819, 78676, 85084, 105638, 211276, 276523, 361607, 553046, 723214, 1106092, 1446428, 4700891, 9401782, 18803564]

約数ペア:

[(1, 18803564), (2, 9401782), (4, 4700891), (13, 1446428), (17, 1106092), (26, 723214), (34, 553046), (52, 361607), (68, 276523), (89, 211276), (178, 105638), (221, 85084), (239, 78676), (356, 52819), (442, 42542), (478, 39338), (884, 21271), (956, 19669), (1157, 16252), (1513, 12428), (2314, 8126), (3026, 6214), (3107, 6052), (4063, 4628)]