19013775

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1213}}^1$

素因数の和:1256

約数の個数: 48

約数和(自身を含む): 36128640

約数和(自身を除く): 17114865

約数列:

[1, 3, 5, 11, 15, 19, 25, 33, 55, 57, 75, 95, 165, 209, 275, 285, 475, 627, 825, 1045, 1213, 1425, 3135, 3639, 5225, 6065, 13343, 15675, 18195, 23047, 30325, 40029, 66715, 69141, 90975, 115235, 200145, 253517, 333575, 345705, 576175, 760551, 1000725, 1267585, 1728525, 3802755, 6337925, 19013775]

約数ペア:

[(1, 19013775), (3, 6337925), (5, 3802755), (11, 1728525), (15, 1267585), (19, 1000725), (25, 760551), (33, 576175), (55, 345705), (57, 333575), (75, 253517), (95, 200145), (165, 115235), (209, 90975), (275, 69141), (285, 66715), (475, 40029), (627, 30325), (825, 23047), (1045, 18195), (1213, 15675), (1425, 13343), (3135, 6065), (3639, 5225)]