19845618

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 44913792

約数和(自身を除く): 25068174

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 61, 78, 86, 97, 122, 129, 183, 194, 258, 291, 366, 559, 582, 793, 1118, 1261, 1586, 1677, 2379, 2522, 2623, 3354, 3783, 4171, 4758, 5246, 5917, 7566, 7869, 8342, 11834, 12513, 15738, 17751, 25026, 34099, 35502, 54223, 68198, 76921, 102297, 108446, 153842, 162669, 204594, 230763, 254431, 325338, 461526, 508862, 763293, 1526586, 3307603, 6615206, 9922809, 19845618]

約数ペア:

[(1, 19845618), (2, 9922809), (3, 6615206), (6, 3307603), (13, 1526586), (26, 763293), (39, 508862), (43, 461526), (61, 325338), (78, 254431), (86, 230763), (97, 204594), (122, 162669), (129, 153842), (183, 108446), (194, 102297), (258, 76921), (291, 68198), (366, 54223), (559, 35502), (582, 34099), (793, 25026), (1118, 17751), (1261, 15738), (1586, 12513), (1677, 11834), (2379, 8342), (2522, 7869), (2623, 7566), (3354, 5917), (3783, 5246), (4171, 4758)]