18802845

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{491}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 34998912

約数和(自身を除く): 16196067

約数列:

[1, 3, 5, 9, 15, 23, 37, 45, 69, 111, 115, 185, 207, 333, 345, 491, 555, 851, 1035, 1473, 1665, 2455, 2553, 4255, 4419, 7365, 7659, 11293, 12765, 18167, 22095, 33879, 38295, 54501, 56465, 90835, 101637, 163503, 169395, 272505, 417841, 508185, 817515, 1253523, 2089205, 3760569, 6267615, 18802845]

約数ペア:

[(1, 18802845), (3, 6267615), (5, 3760569), (9, 2089205), (15, 1253523), (23, 817515), (37, 508185), (45, 417841), (69, 272505), (111, 169395), (115, 163503), (185, 101637), (207, 90835), (333, 56465), (345, 54501), (491, 38295), (555, 33879), (851, 22095), (1035, 18167), (1473, 12765), (1665, 11293), (2455, 7659), (2553, 7365), (4255, 4419)]