19558924

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 45045504

約数和(自身を除く): 25486580

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 77, 92, 121, 154, 161, 242, 251, 253, 308, 322, 484, 502, 506, 644, 847, 1004, 1012, 1694, 1757, 1771, 2761, 2783, 3388, 3514, 3542, 5522, 5566, 5773, 7028, 7084, 11044, 11132, 11546, 19327, 19481, 23092, 30371, 38654, 38962, 40411, 60742, 63503, 77308, 77924, 80822, 121484, 127006, 161644, 212597, 254012, 425194, 444521, 698533, 850388, 889042, 1397066, 1778084, 2794132, 4889731, 9779462, 19558924]

約数ペア:

[(1, 19558924), (2, 9779462), (4, 4889731), (7, 2794132), (11, 1778084), (14, 1397066), (22, 889042), (23, 850388), (28, 698533), (44, 444521), (46, 425194), (77, 254012), (92, 212597), (121, 161644), (154, 127006), (161, 121484), (242, 80822), (251, 77924), (253, 77308), (308, 63503), (322, 60742), (484, 40411), (502, 38962), (506, 38654), (644, 30371), (847, 23092), (1004, 19481), (1012, 19327), (1694, 11546), (1757, 11132), (1771, 11044), (2761, 7084), (2783, 7028), (3388, 5773), (3514, 5566), (3542, 5522)]