19451985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3037}}^1$

素因数の和:3113

約数の個数: 32

約数和(自身を含む): 36164352

約数和(自身を除く): 16712367

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 305, 427, 915, 1281, 2135, 3037, 6405, 9111, 15185, 21259, 45555, 63777, 106295, 185257, 318885, 555771, 926285, 1296799, 2778855, 3890397, 6483995, 19451985]

約数ペア:

[(1, 19451985), (3, 6483995), (5, 3890397), (7, 2778855), (15, 1296799), (21, 926285), (35, 555771), (61, 318885), (105, 185257), (183, 106295), (305, 63777), (427, 45555), (915, 21259), (1281, 15185), (2135, 9111), (3037, 6405)]