18847816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1427}}^1$

素因数の和:1573

約数の個数: 32

約数和(自身を含む): 38384640

約数和(自身を除く): 19536824

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 254, 508, 1016, 1427, 1651, 2854, 3302, 5708, 6604, 11416, 13208, 18551, 37102, 74204, 148408, 181229, 362458, 724916, 1449832, 2355977, 4711954, 9423908, 18847816]

約数ペア:

[(1, 18847816), (2, 9423908), (4, 4711954), (8, 2355977), (13, 1449832), (26, 724916), (52, 362458), (104, 181229), (127, 148408), (254, 74204), (508, 37102), (1016, 18551), (1427, 13208), (1651, 11416), (2854, 6604), (3302, 5708)]