19861725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{1567}}^1$

素因数の和:1606

約数の個数: 36

約数和(自身を含む): 35581056

約数和(自身を除く): 15719331

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 169, 195, 325, 507, 845, 975, 1567, 2535, 4225, 4701, 7835, 12675, 20371, 23505, 39175, 61113, 101855, 117525, 264823, 305565, 509275, 794469, 1324115, 1527825, 3972345, 6620575, 19861725]

約数ペア:

[(1, 19861725), (3, 6620575), (5, 3972345), (13, 1527825), (15, 1324115), (25, 794469), (39, 509275), (65, 305565), (75, 264823), (169, 117525), (195, 101855), (325, 61113), (507, 39175), (845, 23505), (975, 20371), (1567, 12675), (2535, 7835), (4225, 4701)]