18807514

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:187

約数の個数: 48

約数和(自身を含む): 33707520

約数和(自身を除く): 14900006

約数列:

[1, 2, 11, 22, 23, 31, 46, 62, 109, 121, 218, 242, 253, 341, 506, 682, 713, 1199, 1426, 2398, 2507, 2783, 3379, 3751, 5014, 5566, 6758, 7502, 7843, 13189, 15686, 26378, 27577, 37169, 55154, 74338, 77717, 86273, 155434, 172546, 303347, 408859, 606694, 817718, 854887, 1709774, 9403757, 18807514]

約数ペア:

[(1, 18807514), (2, 9403757), (11, 1709774), (22, 854887), (23, 817718), (31, 606694), (46, 408859), (62, 303347), (109, 172546), (121, 155434), (218, 86273), (242, 77717), (253, 74338), (341, 55154), (506, 37169), (682, 27577), (713, 26378), (1199, 15686), (1426, 13189), (2398, 7843), (2507, 7502), (2783, 6758), (3379, 5566), (3751, 5014)]