19544985

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{881}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 37149840

約数和(自身を除く): 17604855

約数列:

[1, 3, 5, 9, 15, 17, 29, 45, 51, 85, 87, 145, 153, 255, 261, 435, 493, 765, 881, 1305, 1479, 2465, 2643, 4405, 4437, 7395, 7929, 13215, 14977, 22185, 25549, 39645, 44931, 74885, 76647, 127745, 134793, 224655, 229941, 383235, 434333, 673965, 1149705, 1302999, 2171665, 3908997, 6514995, 19544985]

約数ペア:

[(1, 19544985), (3, 6514995), (5, 3908997), (9, 2171665), (15, 1302999), (17, 1149705), (29, 673965), (45, 434333), (51, 383235), (85, 229941), (87, 224655), (145, 134793), (153, 127745), (255, 76647), (261, 74885), (435, 44931), (493, 39645), (765, 25549), (881, 22185), (1305, 14977), (1479, 13215), (2465, 7929), (2643, 7395), (4405, 4437)]