18938706

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 24192174

約数列:

[1, 2, 3, 6, 19, 23, 31, 38, 46, 57, 62, 69, 93, 114, 138, 186, 233, 437, 466, 589, 699, 713, 874, 1178, 1311, 1398, 1426, 1767, 2139, 2622, 3534, 4278, 4427, 5359, 7223, 8854, 10718, 13281, 13547, 14446, 16077, 21669, 26562, 27094, 32154, 40641, 43338, 81282, 101821, 137237, 166129, 203642, 274474, 305463, 332258, 411711, 498387, 610926, 823422, 996774, 3156451, 6312902, 9469353, 18938706]

約数ペア:

[(1, 18938706), (2, 9469353), (3, 6312902), (6, 3156451), (19, 996774), (23, 823422), (31, 610926), (38, 498387), (46, 411711), (57, 332258), (62, 305463), (69, 274474), (93, 203642), (114, 166129), (138, 137237), (186, 101821), (233, 81282), (437, 43338), (466, 40641), (589, 32154), (699, 27094), (713, 26562), (874, 21669), (1178, 16077), (1311, 14446), (1398, 13547), (1426, 13281), (1767, 10718), (2139, 8854), (2622, 7223), (3534, 5359), (4278, 4427)]