19493985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 38541312

約数和(自身を除く): 19047327

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 67, 85, 105, 119, 163, 201, 255, 335, 357, 469, 489, 595, 815, 1005, 1139, 1141, 1407, 1785, 2345, 2445, 2771, 3417, 3423, 5695, 5705, 7035, 7973, 8313, 10921, 13855, 17085, 17115, 19397, 23919, 32763, 39865, 41565, 54605, 58191, 76447, 96985, 119595, 163815, 185657, 229341, 290955, 382235, 556971, 928285, 1146705, 1299599, 2784855, 3898797, 6497995, 19493985]

約数ペア:

[(1, 19493985), (3, 6497995), (5, 3898797), (7, 2784855), (15, 1299599), (17, 1146705), (21, 928285), (35, 556971), (51, 382235), (67, 290955), (85, 229341), (105, 185657), (119, 163815), (163, 119595), (201, 96985), (255, 76447), (335, 58191), (357, 54605), (469, 41565), (489, 39865), (595, 32763), (815, 23919), (1005, 19397), (1139, 17115), (1141, 17085), (1407, 13855), (1785, 10921), (2345, 8313), (2445, 7973), (2771, 7035), (3417, 5705), (3423, 5695)]