19378215

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 36155808

約数和(自身を除く): 16777593

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 73, 85, 153, 219, 255, 347, 365, 657, 765, 1041, 1095, 1241, 1735, 3123, 3285, 3723, 5205, 5899, 6205, 11169, 15615, 17697, 18615, 25331, 29495, 53091, 55845, 75993, 88485, 126655, 227979, 265455, 379965, 430627, 1139895, 1291881, 2153135, 3875643, 6459405, 19378215]

約数ペア:

[(1, 19378215), (3, 6459405), (5, 3875643), (9, 2153135), (15, 1291881), (17, 1139895), (45, 430627), (51, 379965), (73, 265455), (85, 227979), (153, 126655), (219, 88485), (255, 75993), (347, 55845), (365, 53091), (657, 29495), (765, 25331), (1041, 18615), (1095, 17697), (1241, 15615), (1735, 11169), (3123, 6205), (3285, 5899), (3723, 5205)]